Estimation of the US Treasury Yield Curve at Daily and Intra-Daily Frequency∗ Lawrence R. Klein Benjamin Franklin Professor of Economics (emeritus) University of Pennsylvania 3718 Locust Walk, Philadelphia, PA 19104-6297 Tel: 215 898 7713, Fax: 215 898 4477 E-mail:lrk@ssc.upenn.edu and Süleyman Özmucur University of Pennsylvania Department of Economics 3718 Locust Walk, Philadelphia, PA 19104-6297 Tel: 215 898 6765, Fax: 215 898 4477 E-mail:ozmucur@ssc.upenn.edu Abstract We present a perspective on the shape of the yield curve. We define, not one particular relationship among interest rate and maturity, but an entire batch of relationships between yield on the i-th treasury security and the set of multiple variables that account for the movements over time of that yield. For each maturity, we find a different set of explanatory variables. Our model for the yield curve is made up of as many multivariate equations as there are major maturities that we are separately considering. The performance of the model is compared with alternative models, such as “no-change” and ARIMA using several criteria. The model performs significantly better based on the mean absolute error, the mean square error, Theil inequality coefficient, and Diebold-Mariano statistics. The model is also, in a statistical sense, significantly better in predicting directional changes. A simple trading rule adopted also favors the model. JEL Classification: C51, C52, C53, E43, E45 Keywords: interest rates, yield curve, forecasting, evaluation, estimation ∗ The authors are indebted to Joshua White, of Decision Economics, Inc., for insightful assistance on the presentation of the material, especially for “real time” applications, and Giselle Guzman of Columbia University for comments and suggestions. Estimation of the US Treasury Yield Curve at Daily and Intra-Daily Frequency Lawrence R. Klein and Süleyman Özmucur In this era of gravitation by central banks towards inflation targeting, an examination of its use as a major guide for macroeconomic policy and performance is needed. The main policy instrument is the very short-term interest rate. In the United States, this becomes the federal funds rate, which is an overnight rate for reconciling required reserve balances among private banks. The Federal Reserve and other central banks are quite accurate in hitting their target values for the operative short-term rate, which is the federal funds rate in the United States. For other countries different target rates are used, and there is no question that central banks in the main advanced economies can hit their short-run targets with great accuracy. Control over the operative rate is, however, only the first step for implementation of monetary policy. Economy-watchers attach great importance to the signals given off by announcements of the targets for the operative rates, but do these rates serve well as guides to the state of monetary policy – either in the direction of credit tightening, easing, or staying put? The entire yield curve and the entire span of interest rates are what really matter, not to mention non-monetary policies, and our first step in this study is to examine how good is the control over operative rates for interpreting the dynamics of the whole spectrum of rates in any given economy. 2 The graph of some relevant time series of US interest rates from 1990 to early 2006 show the course of the federal funds rate, some closely allied treasury rates and a medium-term treasury rate – the 10-year rate. After 1990 and the Gulf War period, the Federal Reserve objective was to stimulate the macroeconomy by significantly lowering the federal funds rate, but not much happened to the 10-year treasury rate, which is much more relevant for judging or lowering private capital costs in order to know what to expect in the form of economic stimulus. Again, after 2001 and the Iraq War, the federal funds rate was the operative rate and showed hardly any significant relationship to the 10-year treasury rate, either for the downswing in the federal funds rate or for its upswing. Eventually, large movements in the federal funds rate may percolate through to the market sensitive rates for actual investment decisions, but the operative rate hardly seems to be a reliable policy tool for influencing real economic activity. It is evident in Figure 1, that some other short-term rates follow the federal funds rate closely, but effective control over this operative rate does not lead to effective control over the more meaningful rates that are used in basic investment decisionmaking, leading to capital formation. 3 Figure1. The Federal Funds Rate, and Yields on U.S. Treasury Securities 12 10 8 6 4 2 0 1990 1992 1994 1996 1998 2000 2002 2004 Federal Funds Rate Target Average Effective Rate of Federal Funds Yield on U.S. Treasury Securities (1-Month) Yield on U.S. Treasury Securities (1-Year) Yield on U.S. Treasury Securities (10-Year) There are some important institutional reasons why there has been a weak connection between the federal funds rate and a medium-term rate such as the 10-year treasury rate, namely, that the technical environment for implementation of banking operations has changed drastically in the information age, starting some time in the 1980s. When the federal funds rate was lowered along a steep gradient, plainly visible in 1991 and 1992, following the Gulf War, there was hardly any corresponding movement 4 in M2, because the meaning of money drastically changed in this period, and there was little stimulus for borrowing in order to realize private investment goals. US Macroeconomic Statistics, 1990-1993 GDP, % change Unemployment, % M2, %change Federal Funds Rate, % 3-month treasury yield, % 10-year treasury yield, % 1990 1991 1992 1993 1.2 5.5 5.3 8.1 7.5 8.6 -0.6 6.7 3.2 5.7 5.4 7.9 2.3 7.4 2.1 3.5 3.4 7.0 3.1 6.8 1.3 3.0 3.0 5.9 ________________________________________________________________ Source: OECD, Economic Survey, US, 1995 The graph of the federal funds rate and the 10-year treasury yield is highlighted because the mortgage rate appears to follow this 10-year treasury rate and was particularly important for the recent expansion of residential real estate investment which sustained the overall economy significantly when many households paid very close attention to their investment in real residential property, at a time when corporate scandals turned many people away from trust in equity market or other security investments. Another aspect of the relation between the federal funds rate and the yield curve in general, is that monetary authorities favor decisively the concept of inflation targeting. A subtle change has taken place in the United States, in this respect. 5 It used to be that the Federal Reserve favored a broader statement about the goal of monetary policy. One of their most important public affairs publications, The Federal Reserve System, Purposes and Functions (1994) stated explicitly on p. 1, “Today, the Federal Reserve’s Duties fall into four general areas: Conducting the nation’s monetary policy by influencing the money and credit conditions in the economy in pursuit of full employment and stable prices.” This is only the first of four general areas of interest and responsibility, but it differs from a more recent statement of the goals of monetary policy in the edition of 2005, which says (p.15), “Stable prices in the long run are a precondition for maximum sustainable output growth and employment as well as moderate long-term interest rates.” There is a very important and subtle distinction between the older and the new statement of the goals of monetary policy. Without declaring that they are formal inflation targeters, it rationalizes their behavior in acting like other advanced industrial economies that are more openly targeting inflation. The statement of 2005 makes price stability a precondition, while in 1994 (p. 17) it states that “a stable level of prices appears to be the condition most conducive to maximum sustained output.” There is an admission that, “… in the short run some tension can exist between the two goals”. [of sustainable output growth and employment at the same time as achievement of price stability]”. It is our opinion that it is possible to generalize the condition of the optimality region for more than one goal at a time. The field of control theory is devoted to the optimization of weighted combinations of multiple targets, subject to the constraint of dynamic movement of the 6 multivariate economy, accompanying an equation system of descriptive economic performance. For inflation targeting, the focus is on the path of inflation alone, with some informed attention paid to the other variables that would constitute a control theorist’s loss or gain function. In the United States, attention is directed towards the treasury yield curve, with special emphasis on the ten-year rate at the present time, as well as the shape of the yield curve. The Meaning of the Yield Curve The concept of the yield curve is a display of interest yields on various treasury securities of different maturity. A normal yield curve begins with the overnight rate and systematically spreads to rates of successive monthly maturity, to yearly maturities of successive length, reaching up to the thirty-year treasury bond. The longer the maturity, the higher the yield is the normal view. As maturity rises, there should be more risk, requiring a higher yield, as long as the risk of repayment remains constant. For this reason, the treasury yield curve is used because all treasury securities are viewed presently as riskless; i.e. the US Treasury has not, in modern times, failed to pay interest when due or principal at maturity. It is a fact, however, that at various times the treasury yield curve becomes steeper or less steep, and in the most embarrassing situation has inverted – by carrying a higher yield on a short-term treasury than on some long-term treasuries. Since the yield curve, at any time, might look like most other simplistic economic relationships between two variables, interest level and maturity level, the yield curve moves about, and a fixed relation between the ten-year treasury and the federal funds 7 rate, in Figure 1, does not show any simple relationship. In the graph, the federal funds rate, monthly maturity rates (target and realized values) are all grouped together, showing that maturities up to one year do, in fact, move closely with the federal funds rate, making one solid “blur”, while the ten-year rate stands far apart, not at all showing a tendency to move to where the Federal Reserve’s policy committee would like it to be. There are significant stretches, where the federal funds rate is being moved down, to stimulate the economy and the ten-year treasury rate hardly moves down by a comparable magnitude. Also there are protracted periods when the federal funds rate moves significantly upwards, while the yield on the ten-year treasury hardly pays any attention to the policy rate. It is for this conceptual relation between yield and maturity, that we have an entirely different perspective on the shape of the yield curve1. We define, not one particular relationship between interest rate and maturity, but an entire batch of relationships between yield on the i-th treasury security and the set of multiple variables that account for the movements over time of that yield. For each maturity, we find a different set of explanatory variables. There are systematic patterns, but not a simple bivariate relationship between a particular yield and the corresponding security’s maturity. For us, every strategic point, for a given maturity on the yield curve is determined by a different set of explanatory variables. Our yield curve is made up of as many multivariate equations as there are major maturities that we are separately 1 There are many attempts to estimate the yield curve pioneered by McCulloch (1971,1975), and Nelson & Siegel (1987). For alternative methods of estimation of the yield curve, see Boudoukh, Richardson, and Whitelaw (2005), Carr, Halpern & McCallum (1974), Cochrane & Piazzesi (2002), Delbaen &Lorimier (1992), Diebold & Li (2006), Diebold, Rudebusch, and Aruoba (2006), Evans (2005),Ioannides (2003), Jordan (1982), Jordan & Mansi (2003), Linton, Mammen, Nielsen and Tanggaard (2001), Lustig, Sleet, and 8 considering. For us, however, there are two key maturities, namely the overnight maturity that constitutes the monetary authority’s operative rate and the ten-year treasury because it appears to be so important for the mortgage market. The ten-year maturity carries that significance now, but some other maturity may replace it as a focal point as the economic situation evolves. Our approach, thus, involves estimation of (1) y it = f i ( x1t ...x nt ) + l it y it = yield of the i-th treasury security at time t x jt = j-th explanatory variable for estimating y it l it = random error for estimating the yield of the i-th maturity. Since some of the explanatory variables are outside the sphere of influence of FED decisions; we emphasize that the FED does not control the yield curve or should not even be convinced that it can estimate the yields on the various maturities by the methods that it relies upon. Our conception of the yield curve is presented in Figure 2 for days in the first five months of 2006. The equations that determine points on this yield curve for a given day are discussed in the next section, for each maturity. The tendency for the yield curves, for different months of 2006, in Figure 2, to drop from the 20-year to the 30-year treasury values; is not an inversion in the sense that we are monitoring yields here, because the 30-year treasury was being phased out, but then returned in this period. Yeltekin (2005), McCulloch (1971, 1975), Nelson & Siegel (1987), Pham (1998), Piazzesi (2005), Shea (1984, 1985), Siegel & Nelson (1988), and Wright (2006). 9 Figure 2 Yield Curves at Five Dates in the Early Part of 2006 5.4 5.2 5.0 4.8 4.6 4.4 40 80 120 160 200 240 280 320 360 MATURITY (IN MONTHS) JAN31 FEB28 MAR31 APR28 MAY12 The values of y it that determine the shape and position of the yield curve, at any time point, t , must each be estimated from its corresponding function f i at time t. Our objective in this paper is not only to estimate realistic yield curves for the US economy, but also to attempt to do so in essentially real time i.e. we use variables in the f i functions that are known in advance so that we can estimate yield curves every 10 working day and also at any time during that working day. We deal mainly with daily market opening time and closing time for the US economy, but, in principle it can be done for other economies and other time periods, no matter how close each time period is to any other time period. Estimates of the Daily Yield Curve Equations We start with the (daily data) equation for the 1-month-treasury bill rate. All variables preceded by D are in first difference form – today’s minus yesterday’s yield. Also, all dependent variables are measured in daily differences2. The 1-month yield is significantly related to the federal funds rate, the futures yield for a 2-year (the shortest available futures) maturity, the “Monday” effect and an autoregressive error-moving average transformation of first and second order residuals (Table 1, Appendix A)3. We can say, of this estimate, that the degree of correlation is quite small and the error term indicates absence of serial correlation. As for all the relevant yields of securities and successive maturities, the explanatory variables must be known before the market opens for daily trading in the USA. The next equation, for a 3-month yield, has mainly the same specification, but the degree of correlation is stronger and the autoregressive adjustments are for fourth and tenth order. 2 The statistical package EViews 5.1 by the Quantitative Micro Software (QMS) is used in estimation of equations. See QMS (2005). 3 Equations given here are the ones using final observations (May 12, 2006) available at the time of the writing. In our experiments the ending period was May 11th for the prediction of yields on May 12th. Similarly, ending period was January 20 for the prediction of the January 23rd yields. Chow prediction tests indicate that there are no significant changes in coefficients of yield curve components during the January 23 through May 12 periods. 11 The equation for the 6-month yield has a similar specification, and continues to follow the federal funds rate, as do the equations for the 1 and 3-month yields, and the overall correlation continues to grow. An autoregressive estimate of third order is significant. The 1-year yield has a similar specification, but adds the Dow-Jones futures price, and does not require an autoregressive or moving average transformation of error. The overall correlation continues to grow. The 2-year yield continues to show significant effect of the federal funds rate, but the futures price in this equation is the 5-year value. The Monday effect is retained, as is the Dow-Jones futures, but the euro deposit rate is added and the first 2 autoregressive adjustments are used. The overall correlation continues to rise and there is no residual serial correlation. The eurodollar deposit rate in all equations has a negative coefficient when significant, suggesting a substitution relationship between US treasuries and euro deposits. The 3-year yield shows little relationship to the federal funds rate but is related to the 2-year futures and the euro deposit rate, as well as the Dow Jones futures rate and also the Monday effect. It has the same degree of correlation as the two year rate. Both the 1year and the 3-year rates do not appear to need correction for serially correlated disturbances. The 5-year yield equation moves up to higher overall correlation, but is not significantly related to the federal funds rate. It is strongly related to its own futures price. The euro deposit rate and the Dow-Jones futures, together with the Monday effect round out the relationship. Two autocorrelation terms, AR (1) and AR (2) are significant. 12 The 7-year yield equation is negatively and insignificantly related to the federal funds rate and negatively related to the euro deposit rate. It has significant positive relationship with the expected inflation rate, the 10-year treasury futures rate, and the Dow-Jones futures rate, and the Monday effect4. The very important 10-year equation has several significant variables, apart from the constant term. It is negatively associated with the Federal Funds Rate and the euro deposit rate, inflation expectations, the 10-year futures rate, the Dow-Jones futures, the Monday effect, and an autoregressive correction factor. The 20-year equation is the first in serial order to show an overall correlation in excess of 0.93. It shows a significant negative relationship to the federal funds rate, and the euro interest rate. Inflation expectations, the 30-year futures rate, and the Dow-Jones futures rate have positive effects. It is not significantly related to the euro deposit rate. The 30-year bond was withheld from the market when the Clinton Administration was realizing large budget surpluses. The futures yield for the newly introduced treasury bond future is significant, but the euro deposit rate is not. The expected inflation rate shows a significant positive effect and the federal funds rate a negative effect. A first order autoregressive error correction term is significant. Each of these displayed equations provides an estimate for one point at a given time period on our yield curve, on the basis of known explanatory variables at the start of each day’s trading. At the beginning of each trading day, during the day, and at closing, 4 The expected inflation rate is measured as the spread between the unprotected yield on 10-year treasuries and inflation protected 10-year treasuries (TIPS). High demand for protection would tend to drive down the yield on TIPS and increase the spread; while monetary authorities try to raise the whole yield curve, by talk and action. With a time lag, some positive effect can be expected. 13 our system can estimate the whole yield curve, according to our conception of it. Yield curves for each of five separate days are shown in Figure 2, above. Table 1. A Summary of Estimated Treasury Yield Equations 1-month 3-month 1-year 6-month CONSTANT 0.004 * -0.005 * -0.004 * -0.003 D(FEDERAL FUNDS RATE) * 0.108 ** 0.089 ** 0.092 * 0.036 *** D(TREASURY FUTURES (2 YEAR)) 0.090 * 0.226 * 0.351 * 0.562 * D(TREASURY FUTURES (5 YEAR)) 2-year 3-year -0.001 -0.001 0.049 ** 0.002 0.855 0.812 * -0.002 ** -0.002 * D(TREASURY FUTURES (10-YEAR)) D(TREASURY FUTURES (30-YEAR)) D(EXPECTED INFLATION (T-1)) D(EXPECTED EURODOLLAR DEPOSIT RATE ) DLOG(DOW-JONES FUTURES)*100 MONDAY -0.016 * 0.027 * 0.023 * DUMMY911 -0.198 * -0.110 * -0.088 ** *** 0.001 ** 0.003 * 0.003 * 0.014 * 0.005 * 0.003 *** 0.749 * DUMMY30 AR(1) 0.618 * -0.075 *** AR(2) -0.999 * -0.061 *** AR(3) AR(4) 0.041 *** AR(10) 0.128 * 0.193 * MA(1) -0.610 * MA(2) 0.983 * Adjusted R2 0.199 * Durbin-Watson 1.831 2.023 -0.095 ** 0.392 * 1.980 0.612 * 2.061 ______________________________________________________________________________________ (*) Significant at the one percent level (**) Significant at the five percent level (***) Significant at the ten percent level 14 0.759 2.001 * 2.147 Table 1. A Summary of Estimated Treasury Yield Equations (continued) CONSTANT 5-year 7-year 10year 20year 30year -0.001 0.000 -0.001 0.000 0.000 0.019 -0.007 -0.019 ** 1.013 * D(FEDERAL FUNDS RATE) -0.017 * -0.018 ** 0.989 * 0.888 * ** 0.032 * D(TREASURY FUTURES (2 YEAR)) D(TREASURY FUTURES (5 YEAR)) 0.908 * D(TREASURY FUTURES (10-YEAR)) 1.082 * D(TREASURY FUTURES (30-YEAR)) D(EXPECTED INFLATION (T-1)) D(EXPECTED EURODOLLAR DEPOSIT RATE ) -0.002 *** 0.023 ** 0.042 * 0.015 -0.002 ** -0.002 ** -0.001 0.001 * 0.000 DLOG(DOW-JONES FUTURES)*100 0.003 * 0.002 * 0.003 * MONDAY 0.004 * 0.002 ** 0.004 * -0.059 * AR(1) -0.147 * -0.075 ** -0.161 * -0.191 * AR(2) -0.067 * Adjusted R2 0.841 * 0.866 * 0.933 * 0.819 * Durbin-Watson 2.001 DUMMY911 DUMMY30 AR(3) AR(4) AR(10) MA(1) MA(2) 0.880 2.226 * 2.000 2.028 ______________________________________________________________________________________ (*) Significant at the one percent level (**) Significant at the five percent level (***) Significant at the ten percent level 15 2.037 A Forecast Error Experiment For every trading day in the interval January 23, 2006 through May 12, 2006, we tested the forecast power of our system for 11 maturities (1 mo., 3 mos., 6 mos., 1 yr., 2 yrs., 3 yrs., 5 yrs., 7 yrs., 10 yrs.,. 20 yrs., 30 yrs.). Average absolute and root mean square errors for closing yields were tabulated daily. At all maturities, our yield estimates had smaller average errors than those of simplistic models. simplistic model 1: no daily change; today’s yield = yesterday’s yield (myopic expectations) simplistic model 2: ARIMA equations (autoregressive, i.e. ARIMA(p,1,0)) For all maturities, from 1 month to 30 years, those that were studied performed better than simplistic models, in the sense that average absolute or root mean square error was systematically lower in our model. In particular, the much-studied and popular 10-year treasury yield was consistently (but not for every day) estimated with about 2 basis points lower error than in the simplistic mechanical or autoregressive models. We have tried to model the effects of advance indicators that are known prior to trading on each market day. Apart from the finding that we have realized, on average, a smaller absolute error, measured in basis points, by using our model equations in this empirical test, we encountered some market features that are worth pointing out. At the present time (early days of 2006) we found that using a reading of crude oil price and gold price, both featured as contributing to external inflationary shocks, made our equations perform more poorly. We have no satisfactory explanation for the “Monday” effect, but it does seem to have some empirical bearing on the market for US treasury securities. 16 Table 2. Mean Absolute Error and Root Mean Square Error (basis points) (1/23/06-5/12/06) Mean Absolute Error (basis points) 1-month 3-month 6-month 1-year 2-year 3-year 5-year 7-year 10-year 20-year 30-year Model 2.30 1.49 1.36 1.26 1.36 1.13 1.19 1.03 1.03 1.17 1.28 Mechanical 2.61 1.60 2.00 2.32 3.10 2.89 3.39 3.15 3.07 3.46 3.21 ARIMA 2.64 1.63 2.10 2.39 3.15 2.92 3.42 3.19 3.11 3.48 3.22 Model minus Mechanical -0.31 -0.11 -0.64 -1.06 -1.74 -1.76 -2.20 -2.12 -2.04 -2.29 -1.93 Model minus ARIMA -0.34 -0.13 -0.74 -1.13 -1.79 -1.79 -2.23 -2.16 -2.07 -2.32 -1.94 Root Mean Square Error (basis points) Model Mechanical ARIMA Model minus ARIMA Model minus Mechanical 1-month 3.95 4.51 4.40 -0.56 -0.45 3-month 1.97 2.02 2.10 -0.06 -0.13 6-month 2.02 2.85 2.87 -0.83 -0.86 1-year 1.92 3.13 3.20 -1.21 -1.28 2-year 2.10 4.08 4.12 -1.98 -2.03 3-year 1.48 3.80 3.80 -2.32 -2.32 5-year 2.51 4.80 4.86 -2.28 -2.34 7-year 1.47 4.03 4.08 -2.57 -2.61 10-year 1.29 3.79 3.83 -2.50 -2.54 20-year 2.68 4.55 4.63 -1.87 -1.95 30-year 1.84 4.10 4.07 -2.26 -2.23 Some major events took place during our test period. The 30-year treasury bond had been retired as a result of redemption policy initiated by the US Treasury when the government’s fiscal policy produced surpluses instead of deficits – an unusual situation. The financial community protested the absence of a good long-term measuring instrument for inflation, and eventually the 30-year bond was re-issued during the period 17 of our test. That event re-directed activity away from our equations, for a few days, and the observed errors were larger, but corrected in a short time span of a few days. The transfer of chairmanship at the Federal Reserve took place during our test period, and this also brought about market re-direction for a short period of days. Although gold and oil price changes did not improve the forecasting performance of our equations, they did appear to have monetary influence from time to time. We direct the readers’ attention to our table of errors (Appendix B) for the following dates: February 1, 8, 10 and March 9, 16, 28 for the yield forecasts of the 10-year note. For the 20-year treasury, February 1, 2, 3 were bad days for yield forecasts. The 30-year bond forecast errors were quite low on February 1, 2, 3, 15, 16 but large on February 9, 10. The long bonds (30-year) had low errors March 17, 20, 21, 22, 23. Equations were estimated every morning, before 8am, and forecasts for the end of the day rates were obtained. At the end of the day, these were compared with actual figures. These are given in Appendix B. In order to check forecasting ability of the model, various statistics were used, and comparisons with alternative models were made5. Comparisons for the January 23-May 12 period (80 observations) are given in Table 2. Mean absolute error and root mean square error based on 80 periods indicate that our model performs better than alternative models (no change, and ARIMA)6. Mean absolute error for the 1-month rate is 2.3 basis points. Errors are much smaller for other maturities. For example, average absolute error is 1.03 basis points for the 10-year and 75 For forecast evaluation see Clements (2005), Clements & Hendry (1998, 2002). Diebold (2004), Granger & Newbold (1973, 1986), Klein (2000), Klein & Young (1980), Mariano (2002), Theil (1961), and Tsay (2005). 6 ARIMA (p, d , q) models are identified and estimated using the Box-Jenkins (1976) methodology. See, also Hamilton (1994) and Tsay (2005). Orders are different for different maturities. For example, ARIMA 18 year, and 1.26 basis points for the 1-year treasury securities. These errors are much smaller than errors in the alternative models. For example, average absolute error for the 10-year rate is 3.07 basis points for the mechanical model (no change) and 3.11 basis points for the ARIMA (3,1,0) model. Root mean square errors are also smaller for our model. For example, root mean square error for the 10-year treasury is 1.29 basis points. Corresponding figures are 3.79 for the “no change” model and 3.83 for the ARIMA. These are significant differences. The graphs (Figures 3, 4, 5, 6) show relationships between actual daily yields and predictions of yields, one day ahead. Figure 3 plots actual daily values and predicted daily values, over the time span of our experimental calculations. Figures 4 and 5 plot predicted (ordinate) versus realized (abscissa) values, over the time span of our experiment. Perfect prediction should lie along a straight line (45 degrees). The scatters of plotted points show low dispersion as maturity lengthens. It is generally the case that change-values of predictions and realizations are less closely correlated, and again the degree of correlation rises with the length of maturity. Estimated yield curves for selected dates (end-of-month or data period) indicate that they are very close to actual curves, which are available at the end of the day (Figure 6). The forecasting accuracy of the model can be seen by the correlation between actual and predicted values and the Theil inequality coefficient. Correlations between actual and ex-ante forecast lie between 0.97 for the 1-month rate and 0.998 for the 10year rate (Table 3, Figure 3). Theil Inequality coefficients are very close to zero, indicating a close fit (Table 3). The decomposition of the inequality coefficient can be (7, 1, 0) is used for the 1-month rate, and ARIMA (3, 1, 0) is used for the 10-year rate. These are available from the authors. 19 very useful to see the source of the error. The bias proportion is very small, less than 0.03 for the 1-month rate and less than 0.045 for the 10-year rate. On the other hand, covariance proportion is above 0.90 for the 1-month rate, and above 0.93 for the 10-year rate. Prediction and realization diagrams lie very close to a 45 degree line (perfect fit) (Figure 4). Table 3. Theil Inequality Coefficient 1-month 3-month 6-month 1-year 2-year 3-year 5-year 7-year 10-year 20-year 30-year Theil Inequality coefficient 0.0044 0.0021 0.0021 0.002 0.0022 0.0016 0.0026 0.0015 0.0013 0.0027 0.0019 bias proportion 0.028 0.0236 0.04 0.0181 0.0019 0.0332 0.0088 0.0129 0.0424 0.0107 0.0544 variance proportion 0.0697 0.013 0.0148 0.0003 0.0003 0.0033 0.0066 0.0023 0.0213 0.0038 0.0126 covariance proportion 0.9024 0.9634 0.9452 0.9816 0.9977 0.9635 0.9846 0.9848 0.9363 0.9856 0.933 0.971 significance of the correlation coefficient * 0.534 significance of the correlation coefficient * 0.987 * 0.389 * 0.989 * 0.71 * 0.99 * 0.81 * 0.99 * 0.876 * 0.996 * 0.946 * 0.991 * 0.881 * 0.997 * 0.938 * 0.998 * 0.951 * 0.994 * 0.812 * 0.997 * 0.919 * Correlation (actual & forecasts) Correlation (change in actual & forecasts) (*) Significant at the one percent level. It is possible to test if these errors, which are smaller for the model, are statistically significant. This can be done with the use of a Diebold-Mariano statistic. There are several advantages of the Diebold-Mariano statistic. Forecast errors do not have to be equal to zero, and they do not have to be normally distributed. Furthermore, it is also very flexible; the researcher is able to determine the loss function. The statistic has an asymptotic normal distribution7. Diebold-Mariano statistics based on 80 forecast periods with a rectangular kernel and five lags are given in Table 4. Both loss functions, square of forecast errors and absolute value of forecast errors, yield the same conclusion. 7 See Diebold & Mariano (1995). There are small sample modifications of this asymptotic statistic. For a survey, see Mariano (2002), and Clements (2005). 20 In these tests the model is compared with the “no change” model8. The model has significantly smaller errors than alternative models at the one percent level for all maturities, except 1-month and 3-month. The model has smaller errors (negative figures) for the 1-month and 3-month rates, but not statistically significant at the five percent level. Table 4. Diebold-Mariano Statistics with Alternative Loss Functions 1-month 3-month 6-month 1-year 2-year 3-year 5-year 7-year 10-year 20-year 30-year Loss Function: Square of forecast errors -1.85 -0.6 -3.46 -3.03 -3.82 -4.51 -2.78 -5.41 -8.05 -3.65 -24.61 Significance *** * * * * * * * * * Loss Function: Absolute value of Forecast Errors -1.85 -0.47 -2.79 -4.09 -6.18 -7.74 -5.4 -7.05 -10.42 -11.24 -10.89 Significance *** * * * * * * * * * (*) Significant at the one percent level. (***) Significant at the ten percent level. Another criterion to evaluate the performance of the model is the ability to predict directional change (here, daily changes in treasury yields). This can be done by comparing actual change from a day earlier (At-At-1) with the predicted change (Pt-At-1), where P is the predicted, and A is the actual yield. If both changes are positive or negative, it is a correct prediction of the change. If the actual change is positive, but the predicted change is negative, or the actual change is negative and the predicted change is positive, it is an error in prediction of the change (Table 5, Appendix B). Prediction8 Similar results are obtained for comparisons with ARIMA models. 21 realization diagrams on changes (Figure 5) are also close to a 45 degree line, except for treasuries with shorter maturities. These can be seen in lower correlations between changes in actual and predicted values (Table 3). For example, the correlation between changes in actual and changes in predicted 10-year rate is 0.95, but the correlation is only 0.39 for the 3-month rate. There are 45 cases where there is an increase in the yield and the directional prediction of the yield is an increase (correct prediction) in the 10-year treasuries (Table 5). In one case, the model prediction is an “increase”, but the actual change is a “decrease” (incorrect prediction). In five cases, the model prediction is a “decrease”, but the actual change is an “increase” (incorrect prediction). There are 29 cases where there is a decrease in the yield and the directional prediction of the yield is also a decrease (correct prediction). There are 74 correct (93%) and 6 incorrect predictions out of a total of 80 daily changes in the 10-year yield. The model performs slightly better when rates are decreasing than when they are increasing. For example, the percent of correct prediction in the 10-year yield is 90% (45/(45+5)*100) when rates are increasing (actual change is positive) and 97% (29/(29+1)*100) when rates are decreasing (actual change is negative). The chi-square (χ2) test for the 10-year yield (Tsay, 2005) indicates that the model outperforms a random choice model with equal probabilities of upward and downward movements. The model performs very well in terms of prediction of changes with treasury yields of maturities from 1-year through 20year. About 90 percent of changes are predicted correctly. The performance is relatively good for the 6-month (79%) and 30-year (83%) maturities. The accuracy of predicting changes are not that good for treasuries with 1-month and 3-month maturities. Based on 22 directional measure of χ2 tests the model does significantly better, with the exception of the 3-month yield. Table 5. Prediction of Turning Points (80 daily changes) 1-month 3-month 6-month 1-year 2-year 3-year 5-year 7-year 10-year 20-year 30-year Predi ction up and actual up Predicti on up and actual down Predicti on down and actual up Predicti on down and actual down Number of correct predicti ons (1) 35 37 45 50 49 51 49 47 45 45 40 Numb er of incorr ect predic tions share of correct predicti ons (actualup) share of correct predicti ons (actualdown) (2) (3) (4) (1+4) (2+3) 1/(1+3) 4/(2+4) 11 9 3 2 1 3 1 0 1 2 2 12 23 14 6 7 6 6 8 5 8 12 22 11 18 22 23 20 24 25 29 25 26 57 48 63 72 72 71 73 72 74 70 66 23 32 17 8 8 9 7 8 6 10 14 0.74 0.62 0.76 0.89 0.88 0.89 0.89 0.85 0.90 0.85 0.77 0.67 0.55 0.86 0.92 0.96 0.87 0.96 1.00 0.97 0.93 0.93 share of total correct predicti ons (1+4)/(1 +2+3+4 ) 0.71 0.60 0.79 0.90 0.90 0.89 0.91 0.90 0.93 0.88 0.83 (*) Significant at the one percent level. A Trading Experiment It is possible to have a simple experiment of daily transactions to see the performance of the model in a trading setting. For this experiment it may be better to work with prices, which are calculated as 100 minus the yield. A simple decision rule which is exercised at the beginning of the day, and the gain or loss at the end of the day is easily seen. The same experiment is repeated for all the days to compare the performance of the model against the mechanical model. 23 Signif icance Chisquare (χ2) 13.4 1.7 24.8 48.4 49.8 43.6 53.1 51.8 57.6 44.3 35.5 * * * * * * * * * * The simple rule involves comparison of actual price (A) at the beginning of the day and its predicted value (P) at the end of the day. If predicted change in the price is positive, i.e. Pt – At-1 >0, then the suggested decision is to “buy”. The gain, which may turn out to be negative also, at the end of the day is Gt = A t – A t-1. If the prediction is correct, there will be a positive gain. If predicted change in the price is negative, i.e. Pt – At-1 <0, then the suggested decision is to “sell”. The gain (or loss avoided) at the end of the day is Gt = A t-1 – A t, or Gt = (-1)*(A t – A t-1). If the prediction is correct, there will be a gain since the price at the end of the day is lower than the price at the beginning of the day. The sum of these daily gains indicates a higher return for the model (Table 6). For example, for the 10-year treasuries, the sum of gains in 80 days is 2.42, compared to a gain of 0.82 for the mechanical model9. If the trading cost is 8 cents per $100 par value10, the net gain for $1,000 in 80 days is $1,356 (2.42*1000-80*(0.08/100)*1000-1000) with a percentage return of 135.6%, compared to a loss of $244 (negative 24.4% return) in the mechanical model. The returns are even higher for 5-year (160.6%) and 7-year (139.6%) treasuries. Results for other treasuries are also very favorable, with the exception of the 3-month treasuries. The un-weighted average return is 93.7% for the model, and negative 37.2% for the mechanical model. 9 The cost of transaction and other fees are not considered in these calculations. This is really not an issue in comparisons with the mechanical model, because same costs apply to every case. 10 The bid-ask spread figure of 8 cents per $100 par value is obtained from Chakravarty & Sarkar (2001). However, any other possible costs accrued do not change the major conclusion that the model performs better than the mechanical model. It should be noted that for individual investors trading directly at the Treasury web-site, there is a $45 “penalty” for selling before maturity. See U.S. Treasury (2006). 24 Table 6. Performance in Daily Trading Gain Model Mechanical Difference Net Gain ($1000 value, 8cent/$100 cost per transaction) Percent Net Gain Model Mechanical Difference Model -374 900 52.6 Mechanical -37.4 Difference 1-month 1.59 0.69 0.90 526 3-month 0.44 0.50 -0.06 -624 -564 -60 -62.4 -56.4 -6.0 6-month 1.44 0.52 0.92 376 -544 920 37.6 -54.4 92.0 1-year 1.80 0.56 1.24 736 -504 1240 73.6 -50.4 124.0 2-year 2.34 0.64 1.70 1276 -424 1700 127.6 -42.4 170.0 3-year 2.21 0.71 1.50 1146 -354 1500 114.6 -35.4 150.0 5-year 2.67 0.77 1.90 1606 -294 1900 160.6 -29.4 190.0 7-year 2.46 0.80 1.66 1396 -264 1660 139.6 -26.4 166.0 10-year 2.42 0.82 1.60 1356 -244 1600 135.6 -24.4 160.0 20-year 2.41 0.85 1.56 1346 -214 1560 134.6 -21.4 156.0 30-year 2.23 0.75 1.48 1166 -314 1480 116.6 -31.4 148.0 22.01 7.61 14.40 10306 -4094 14400 93.7 -37.2 130.9 Total 90.0 Conclusion A model which is used to estimate points on the yield curve by forecasting treasury yields at different maturities using different explanatory variables is constructed. Once the final structure was established, the eleven-equation model was re-estimated every morning to forecast the end of the day treasury yields. The performance of the model is compared with alternative models, such as “no-change” and ARIMA using several criteria. The model performs significantly better based on the mean absolute error, the mean square error, Theil inequality coefficient, and Diebold-Mariano statistics. The model is also better, in a statistically significant sense, in predicting directional changes. A simple trading rule adopted also favors the model in all cases, with the exception of the 3-month treasury yield. In general, the performance of the model improves with maturity; the performance is much better for yields of longer maturities. 25 Figure3. Actual and Ex-ante Forecasts 4.8 5.0 4.7 4.9 4.6 4.8 4.5 4.4 4.7 4.3 4.6 4.2 4.5 4.1 4.0 r=0.971, MAE=2.30, RMSE=3.95, U=0.0044 4.4 R=0.987, MAE=1.49, RMSE=1.97, U=0.0021 4.3 3.9 2006:02 2006:03 Actual_1-month 2006:04 2006:02 Forecast_1-month Actual_3-month 5.1 5.1 5.0 5.0 4.9 4.9 4.8 4.8 4.7 4.7 4.6 4.6 4.5 2006:03 4.5 2006:04 Forecast_3-month r=0.990, MAE=1.26,RMSE=1.92,U=0.0020 r=0.989,MAE=1.36,RMSE=2.02,U=0.0021 4.4 4.4 2006:02 2006:03 Actual_6-month 2006:04 2006:02 Forecast_6-month 2006:03 Actual_1-year 26 2006:04 Forecast_1-year Figure3. Actual and Ex-ante Forecasts (Continued) 5.1 5.1 5.0 5.0 4.9 4.9 4.8 4.8 4.7 4.7 4.6 4.6 4.5 4.5 r=0.990, MAE=1.36,RMSE=2.10, U=0.0022 4.4 4.3 4.4 r=0.996, MAE=1.13, RMSE=1.48, U=0.0016 4.3 2006:02 2006:03 Actual_2-year 2006:04 2006:02 Forecast_2-year 5.1 5.2 5.0 5.1 4.9 5.0 4.8 4.9 4.7 4.8 4.6 4.7 4.5 4.6 4.4 4.5 4.3 r=0.991, MAE=1.19, RMSE=2.51, U=0.0026 4.2 2006:03 Actual_3-year 4.4 2006:04 Forecast_3-year r=0.997, MAE=1.03,RMSE=1.47,U=0.0015 4.3 2006:02 2006:03 Actual_5-year 2006:04 2006:02 Forecast_5-year 2006:03 Actual_7-year 27 2006:04 Forecast_7-year Figure3. Actual and Ex-ante Forecasts (Continued) 5.2 5.6 5.1 5.4 5.0 4.9 5.2 4.8 5.0 4.7 4.6 4.8 4.5 4.6 4.4 r=0.998, MAE=1.03,RMSE=1.29, U=0.0013 r=0.994, MAE=1.17,RMSE=2.68, U=0.0027 4.4 4.3 2006:02 2006:03 Actual_10-year 2006:04 2006:02 Forecast_10-year 5.3 5.2 5.1 5.0 4.9 4.8 4.7 4.6 4.5 r=0.997, MAE=1.28, RMSE=1.84, U=0.0019 4.4 2006:02 2006:03 Actual_30-year 2006:03 Actual_20-year 2006:04 Forecast_30-year 28 2006:04 Forecast_20-year Figure 4. Prediction and Realization Diagrams 4.8 4.9 4.7 4.8 Forecast_3-month Actual_1-month 4.6 4.5 4.4 4.3 4.2 4.1 4.7 4.6 4.5 4.4 4.0 3.9 3.9 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.3 4.3 4.4 5.1 5.1 5.0 5.0 4.9 4.9 4.8 4.7 4.6 4.5 4.4 4.4 4.5 4.6 4.7 4.8 4.9 5.0 5.0 5.1 Actual_3-month Actual_1-year Actual_6-month Forecast_1-month 4.8 4.7 4.6 4.5 4.5 4.6 4.7 4.8 4.9 5.0 5.1 4.4 4.4 Forecast_6-month 4.5 4.6 4.7 4.8 4.9 Forecast_1-year 29 5.1 5.1 5.0 5.0 4.9 4.9 Actual_3-year Actual_2-year Figure 4. Prediction and Realization Diagrams (Continued) 4.8 4.7 4.6 4.8 4.7 4.6 4.5 4.5 4.4 4.4 4.3 4.3 4.4 4.5 4.6 4.7 4.8 4.9 5.0 5.1 4.3 4.3 4.4 4.5 4.6 4.7 4.8 4.9 5.0 5.1 Forecast_3-year 5.1 5.2 5.0 5.1 4.9 5.0 4.8 4.9 Actual_7-year Actual_5-year Forecast_2-year 4.7 4.6 4.5 4.8 4.7 4.6 4.4 4.5 4.3 4.4 4.2 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 5.0 5.1 4.3 4.3 4.4 4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 Forecast_5-year Forecast_7-year 30 Figure 4. Prediction and Realization Diagrams (Continued) 5.2 5.6 5.1 5.4 4.9 Actual_20-year Actual_10-year 5.0 4.8 4.7 4.6 4.5 5.0 4.8 4.6 4.4 4.4 4.4 4.3 4.3 4.4 4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 Forecast_10-year 4.6 4.8 5.0 5.2 Forecast_20-year 5.3 5.2 5.1 Actual_30-year 5.2 5.0 4.9 4.8 4.7 4.6 4.5 4.4 4.4 4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 Forecast_30-year 31 5.4 5.6 Figure 5. Prediction and Realization Diagrams (Changes in Actual and Forecasts) CHANGE(Actual_1-month) .25 r=0.534 .30 .06 .25 .04 .20 .20 .15 .15 .10 .10 .05 .05 .00 .00 -.05 -.05 CHANGE(Forecast_3-month) .30 r=0.389 .02 .00 -.02 -.04 -.06 -.08 -.02 -.10 -.10 -.03 -.02 -.01 .00 .01 .02 .03 .04 .05 .06 CHANGE(Forecast_1-month) .08 .08 .01 .02 .03 .04 r=0.810 .06 CHANGE(Actual_1-year) .06 CHANGE(Actual_6-month) .00 CHANGE(Actual_3-month) r=0.710 .04 .02 .00 -.02 -.04 -.06 -.04 -.01 .04 .02 .00 -.02 -.04 -.02 .00 .02 .04 .06 -.06 -.08 .08 CHANGE(Forecast_6-month) -.04 .00 .04 .08 CHANGE(Forecast_1-year) 32 .12 Figure 5. Prediction and Realization Diagrams (Changes in Actual and Forecasts) (Continued) .10 .12 r=0.876 r=0.946 CHANGE(Actual_3-year) CHANGE(Actual_2-year) .08 .05 .00 -.05 -.10 -.08 -.04 .00 .04 .08 .04 .00 -.04 -.08 -.12 -.08 -.06 -.04 -.02 .00 .02 .04 .06 .08 .12 CHANGE(Forecast_2-year) .12 r=0.881 .08 CHANGE(Actual_7-year) CHANGE(Actual_5-year) .12 CHANGE(Forecast_3-year) .04 .00 -.04 -.08 -.12 -.12 -.08 -.04 .00 .04 .08 .12 .16 r=0.938 .08 .04 .00 -.04 -.08 -.12 -.08 CHANGE(Forecast_5-year) -.04 .00 .04 .08 CHANGE(Forecast_7-year) 33 .12 Figure 5. Prediction and Realization Diagrams (Changes in Actual and Forecasts) (Continued) .12 r=0.951 CHANGE(Actual_20-year) CHANGE(Actual_10-year) .10 .05 .00 -.05 CHANGE(Forecast_10-year) CHANGE(Actual_30-year) r=0.919 .00 -.05 -.10 -.15 -.08 -.04 .00 .04 .04 .00 -.04 -.12 -.08 -.04 .00 .04 CHANGE(Forecast_20-year) .05 -.20 -.12 .08 -.08 -.16 -.10 -.08 -.06 -.04 -.02 .00 .02 .04 .06 .08 .10 r=0.812 .08 CHANGE(Forecast_30-year) 34 .08 Figure 6. Actual and Estimated Yield Curves for Selected Dates 4.7 4.70 4.6 4.65 4.5 4.60 4.4 4.55 4.3 4.50 40 80 120 160 200 240 280 320 360 40 80 120 MATURITY 160 200 240 280 320 360 320 360 MATURITY ACTUAL_JAN31 JAN31 ACTUAL_FEB28 FEB28 5.3 5.0 5.2 5.1 4.9 5.0 4.9 4.8 4.8 4.7 4.7 4.6 40 80 120 160 200 240 280 320 360 40 MATURITY MAR31 5.3 5.2 5.1 5.0 4.9 4.8 4.7 120 160 200 240 280 320 360 MATURITY ACTUAL_MAY12 160 200 ACTUAL_APR28 5.4 80 120 240 280 MATURITY ACTUAL_MAR31 40 80 MAY12 35 APR28 References Boudoukh, Jacob, Matthew Richardson and Robert Whitelaw (2005). Fiscal Hedging and the Yield Curve. National Bureau of Economic Research. Working Paper 11840. December 2005.<www.nber.org/papers/w11840> Box, G.E.P and G. M. Jenkins (1976). Time Series Analysis: Forecasting and Control, rev. ed. Holden-Day. San Francisco. Carr, J.L., P.J. Halpern and J.S. McCallum (1974). “Correcting the Yield Curve: A ReInterpretation of the Duration Problem”. The Journal of Finance. 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The Journal of Financial and Quantitative Analysis, Vol. 23, No. 1 (March 1988), pp.105-110. Theil, H. (1961). Economic Forecasts and Policy (2nd ed.). North-Holland. Amsterdam. Tsay, R.S. (2005). Analysis of Financial Time Series (2nd ed.). John Wiley & Sons. New Jersey. U.S. Treasury (2006). Treasury Direct Investor Kit. www.treasurydirect.gov. Wright, Jonathan H. (2006). The Yield Curve and Predicting Recessions. Federal Reserve Board. Finance and Economics Discussion Series 2006-07. Washington, D.C. www.federalreserve.gov 38 APPENDIX A: ESTIMATED EQUATIONS Dependent Variable: D(YIELD ON TREASURY SECURITIES (1-MONTH)) Method: Least Squares Sample (adjusted): 8/03/2001 5/12/2006 Included observations: 1246 after adjustments Convergence achieved after 16 iterations Newey-West HAC Standard Errors & Covariance (lag truncation=6) Backcast: 8/01/2001 8/02/2001 Variable Coefficient Std. Error t-Statistic Prob. 0.0044 0.1076 0.0900 -0.0164 -0.1983 0.6178 -0.9988 -0.6100 0.9826 0.0015 0.0474 0.0173 0.0031 0.0527 0.0014 0.0012 0.0063 0.0073 2.9961 2.2681 5.2069 -5.3689 -3.7664 436.3722 -811.3225 -96.4740 134.3092 0.0028 0.0235 0.0000 0.0000 0.0002 0.0000 0.0000 0.0000 0.0000 0.0008 0.0444 -3.6074 -3.5704 39.6 0.0000 CONSTANT D(FEDERAL FUNDS RATE) D(TREASURY FUTURES (2 YEAR)) MONDAY DUMMY911 AR(1) AR(2) MA(1) MA(2) R-squared Adjusted R-squared S.E. of regression Sum squared resid Log likelihood Durbin-Watson stat 0.2040 0.1989 0.0397 1.9502 2256.4 1.8306 Mean dependent var S.D. dependent var Akaike info criterion Schwarz criterion F-statistic Prob(F-statistic) Inverted AR Roots Inverted MA Roots .31+.95i .30-.94i .31-.95i .30+.94i Chow Forecast Test: Forecast from 1/23/2006 to 5/12/2006 F-statistic Log likelihood ratio 1.002181 83.48169 Prob. F(80,1157) Prob. Chi-Square(80) 39 0.475760 0.373005 Dependent Variable: D(YIELD ON TREASURY SECURITIES ( 3-MONTH)) Method: Least Squares Sample: 1/01/1997 5/12/2006 Included observations: 2443 Convergence achieved after 6 iterations Newey-West HAC Standard Errors & Covariance (lag truncation=8) Variable Coefficient Std. Error t-Statistic -0.0052 0.0886 0.2258 0.0267 -0.1098 0.0408 0.1283 0.0010 0.0349 0.0243 0.0027 0.0394 0.0254 0.0314 -5.2323 2.5387 9.2993 9.9654 -2.7868 1.6035 4.0896 0.0000 0.0112 0.0000 0.0000 0.0054 0.1090 0.0000 Mean dependent var S.D. dependent var Akaike info criterion Schwarz criterion F-statistic Prob(F-statistic) -0.0001 0.0460 -3.5316 -3.5149 98.5 0.0000 CONSTANT D(FEDERAL FUNDS RATE) D(TREASURY FUTURES (2 YEAR)) MONDAY DUMMY911 AR(4) AR(10) R-squared Adjusted R-squared S.E. of regression Sum squared resid Log likelihood Durbin-Watson stat 0.1952 0.1933 0.0413 4.1612 4320.8 2.0233 Inverted AR Roots .82 .22-.77i -.64+.44i .64-.44i .22+.77i .64+.44i .22+.77i -.22-.77i -.82 -.64-.44i Chow Forecast Test: Forecast from 1/23/2006 to 5/12/2006 F-statistic Log likelihood ratio 0.206650 17.08281 Prob. F(80,2356) Prob. Chi-Square(80) 40 Prob. 1.000000 1.000000 Dependent Variable: D(YIELD ON TREASURY SECURITIES (6-MONTH)) Method: Least Squares Sample: 1/01/1997 5/12/2006 Included observations: 2443 Convergence achieved after 5 iterations Newey-West HAC Standard Errors & Covariance (lag truncation=8) Variable Coefficient Std. Error t-Statistic Prob. -0.0045 0.0919 0.3514 0.0232 -0.0876 -0.0950 0.0007 0.0280 0.0236 0.0017 0.0360 0.0423 -6.7340 3.2841 14.9139 13.3725 -2.4339 -2.2455 0.0000 0.0010 0.0000 0.0000 0.0150 0.0248 Mean dependent var S.D. dependent var Akaike info criterion Schwarz criterion F-statistic Prob(F-statistic) -0.0001 0.0395 -4.1190 -4.1047 315.8 0.0000 CONSTANT D(FEDERAL FUNDS RATE) D(TREASURY FUTURES (2 YEAR)) MONDAY DUMMY911 AR(3) R-squared Adjusted R-squared S.E. of regression Sum squared resid Log likelihood Durbin-Watson stat 0.3932 0.3919 0.0308 2.3145 5037.3 1.9800 Inverted AR Roots .21+.36i .21-.36i Chow Forecast Test: Forecast from 1/23/2006 to 5/12/2006 F-statistic Log likelihood ratio 0.261150 21.55907 Prob. F(80,2357) Prob. Chi-Square(80) 41 1.000000 1.000000 -.41 Dependent Variable: D(YIELD ON TREASURY SECURITIES ( 1-YEAR)) Method: Least Squares Sample (adjusted): 10/07/1997 5/12/2006 Included observations: 2244 after adjustments Newey-West HAC Standard Errors & Covariance (lag truncation=7) Variable Coefficient Std. Error t-Statistic Prob. -0.0028 0.0362 0.5619 0.0014 0.0140 0.0007 0.0206 0.0285 0.0007 0.0015 -4.1921 1.7601 19.7326 2.1091 9.6455 0.0000 0.0785 0.0000 0.0350 0.0000 CONSTANT D(FEDERAL FUNDS RATE) D(TREASURY FUTURES (2 YEAR)) DLOG(DOW-JONES FUTURES)*100 MONDAY R-squared Adjusted R-squared S.E. of regression Sum squared resid Log likelihood Durbin-Watson stat 0.6129 0.6122 0.0282 1.7849 4823.2 2.0611 Mean dependent var S.D. dependent var Akaike info criterion Schwarz criterion F-statistic Prob(F-statistic) Chow Forecast Test: Forecast from 1/23/2006 to 5/12/2006 F-statistic Log likelihood ratio 0.211010 17.47733 Prob. F(80,2159) Prob. Chi-Square(80) 42 1.000000 1.000000 -0.0002 0.0453 -4.2943 -4.2816 886.1 0.0000 Dependent Variable: D(YIELD ON TREASURY SECURITIES ( 2-YEAR)) Method: Least Squares Sample (adjusted): 10/09/1997 5/12/2006 Included observations: 2242 after adjustments Convergence achieved after 4 iterations Newey-West HAC Standard Errors & Covariance (lag truncation=7) Variable Coefficient Std. Error t-Statistic Prob. -0.0010 0.0488 0.8117 0.0007 0.0212 0.0243 -1.4142 2.2996 33.3736 0.1574 0.0216 0.0000 -0.0022 0.0033 0.0048 -0.0752 -0.0606 0.0010 0.0006 0.0015 0.0434 0.0349 -2.2084 5.2161 3.3047 -1.7313 -1.7348 0.0273 0.0000 0.0010 0.0835 0.0829 CONSTANT D(FEDERAL FUNDS RATE) D(TREASURY FUTURES (5 YEAR)) D(EXPECTED EURODOLLAR DEPOSIT RATE ) DLOG(DOW-JONES FUTURES)*100 MONDAY AR(1) AR(2) R-squared Adjusted R-squared S.E. of regression Sum squared resid Log likelihood Durbin-Watson stat 0.7602 0.7595 0.0290 1.8723 4764.3 2.0013 Inverted AR Roots Mean dependent var S.D. dependent var Akaike info criterion Schwarz criterion F-statistic Prob(F-statistic) -.04-.24i -.04+.24i Chow Forecast Test: Forecast from 1/23/2006 to 5/12/2006 F-statistic Log likelihood ratio 0.229367 19.01828 Prob. F(80,2154) Prob. Chi-Square(80) 43 1.000000 1.000000 -0.0003 0.0590 -4.2429 -4.2225 1011.8 0.0000 Dependent Variable: D(YIELD ON TREASURY SECURITIES ( 3-YEAR)) Method: Least Squares Sample (adjusted): 10/07/1997 5/12/2006 Included observations: 2244 after adjustments Newey-West HAC Standard Errors & Covariance (lag truncation=7) Variable Coefficient Std. Error t-Statistic Prob. -0.0006 0.0019 0.8551 0.0007 0.0192 0.0410 -0.9431 0.0992 20.8813 0.3457 0.9210 0.0000 -0.0023 0.0032 0.0029 0.0012 0.0008 0.0016 -1.8490 4.0650 1.7799 0.0646 0.0000 0.0752 CONSTANT D(FEDERAL FUNDS RATE) D(TREASURY FUTURES (2 YEAR)) D(EXPECTED EURODOLLAR DEPOSIT RATE ) DLOG(DOW-JONES FUTURES)*100 MONDAY R-squared Adjusted R-squared S.E. of regression Sum squared resid Log likelihood Durbin-Watson stat 0.7498 0.7492 0.0309 2.1361 4621.7 2.1474 Mean dependent var S.D. dependent var Akaike info criterion Schwarz criterion F-statistic Prob(F-statistic) Chow Forecast Test: Forecast from 1/23/2006 to 5/12/2006 F-statistic Log likelihood ratio 0.206568 17.11869 Prob. F(80,2158) Prob. Chi-Square(80) 44 1.000000 1.000000 -0.0003 0.0617 -4.1138 -4.0985 1341.1 0.0000 Dependent Variable: D(YIELD ON TREASURY SECURITIES ( 5-YEAR)) Method: Least Squares Sample (adjusted): 10/09/1997 5/12/2006 Included observations: 2242 after adjustments Convergence achieved after 6 iterations Newey-West HAC Standard Errors & Covariance (lag truncation=7) Variable Coefficient Std. Error t-Statistic Prob. -0.0008 0.0190 0.9082 0.0005 0.0167 0.0238 -1.5750 1.1318 38.1883 0.1154 0.2578 0.0000 -0.0017 0.0027 0.0040 -0.1470 -0.0669 0.0009 0.0006 0.0013 0.0518 0.0256 -1.8790 4.9532 3.0959 -2.8395 -2.6177 0.0604 0.0000 0.0020 0.0046 0.0089 CONSTANT D(FEDERAL FUNDS RATE) D(TREASURY FUTURES (5 YEAR)) D(EXPECTED EURODOLLAR DEPOSIT RATE ) DLOG(DOW-JONES FUTURES)*100 MONDAY AR(1) AR(2) R-squared Adjusted R-squared S.E. of regression Sum squared resid Log likelihood Durbin-Watson stat 0.8415 0.8410 0.0247 1.3668 5117.1 2.0013 Inverted AR Roots Mean dependent var S.D. dependent var Akaike info criterion Schwarz criterion F-statistic Prob(F-statistic) -.07-.25i -.07+.25i Chow Forecast Test: Forecast from 1/23/2006 to 5/12/2006 F-statistic Log likelihood ratio 0.169266 14.05056 Prob. F(80,2154) Prob. Chi-Square(80) 45 1.000000 1.000000 -0.0004 0.0620 -4.5576 -4.5372 1693.9 0.0000 Dependent Variable: D(YIELD ON TREASURY SECURITIES ( 7-YEAR)) Method: Least Squares Sample (adjusted): 10/07/1997 5/12/2006 Included observations: 2244 after adjustments Newey-West HAC Standard Errors & Covariance (lag truncation=7) Variable Coefficient Std. Error t-Statistic Prob. -0.0004 -0.0072 0.0232 1.0816 0.0005 0.0117 0.0093 0.0290 -0.7907 -0.6124 2.4928 37.2807 0.4292 0.5403 0.0127 0.0000 -0.0021 0.0024 0.0024 0.0008 0.0005 0.0010 -2.4897 4.4949 2.4847 0.0129 0.0000 0.0130 CONSTANT D(FEDERAL FUNDS RATE) D(EXPECTED INFLATION (T-1)) D(TREASURY FUTURES (10-YEAR)) D(EXPECTED EURODOLLAR DEPOSIT RATE ) DLOG(DOW-JONES FUTURES)*100 MONDAY R-squared Adjusted R-squared S.E. of regression Sum squared resid Log likelihood Durbin-Watson stat 0.8808 0.8804 0.0211 0.9979 5475.6 2.2260 Mean dependent var S.D. dependent var Akaike info criterion Schwarz criterion F-statistic Prob(F-statistic) Chow Forecast Test: Forecast from 1/23/2006 to 5/12/2006 F-statistic Log likelihood ratio 0.268208 22.21192 Prob. F(80,2157) Prob. Chi-Square(80) 46 1.000000 1.000000 -0.0004 0.0611 -4.8740 -4.8562 2753.7 0.0000 Dependent Variable: D(YIELD ON TREASURY SECURITIES ( 10-YEAR)) Method: Least Squares Sample (adjusted): 10/08/1997 5/12/2006 Included observations: 2243 after adjustments Convergence achieved after 5 iterations Newey-West HAC Standard Errors & Covariance (lag truncation=7) Variable Coefficient Std. Error t-Statistic Prob. -0.0006 -0.0195 0.0416 1.0125 0.0005 0.0085 0.0094 0.0267 -1.2693 -2.2822 4.4288 37.8675 0.2045 0.0226 0.0000 0.0000 -0.0021 0.0026 0.0036 -0.0752 0.0008 0.0005 0.0010 0.0300 -2.5228 4.8859 3.7109 -2.5097 0.0117 0.0000 0.0002 0.0122 CONSTANT D(FEDERAL FUNDS RATE) D(EXPECTED INFLATION (T-1)) D(TREASURY FUTURES (10-YEAR)) D(EXPECTED EURODOLLAR DEPOSIT RATE ) DLOG(DOW-JONES FUTURES)*100 MONDAY AR(1) R-squared Adjusted R-squared S.E. of regression Sum squared resid Log likelihood Durbin-Watson stat 0.8663 0.8659 0.0212 1.0015 5468.6 2.0001 Inverted AR Roots Mean dependent var S.D. dependent var Akaike info criterion Schwarz criterion F-statistic Prob(F-statistic) -.08 Chow Forecast Test: Forecast from 1/23/2006 to 5/12/2006 F-statistic Log likelihood ratio 0.340336 28.16129 Prob. F(80,2155) Prob. Chi-Square(80) 47 1.000000 1.000000 -0.0003 0.0578 -4.8691 -4.8487 2068.8 0.0000 Dependent Variable: D(YIELD ON TREASURY SECURITIES ( 20-YEAR)) Method: Least Squares Sample (adjusted): 10/08/1997 5/12/2006 Included observations: 2243 after adjustments Convergence achieved after 4 iterations Newey-West HAC Standard Errors & Covariance (lag truncation=7) Variable Coefficient Std. Error t-Statistic Prob. 0.0000 -0.0166 0.0150 0.9888 0.0002 0.0060 0.0059 0.0122 -0.0068 -2.7614 2.5581 80.8164 0.9946 0.0058 0.0106 0.0000 -0.0005 0.0009 -0.1609 0.0005 0.0003 0.0392 -1.1139 3.2951 -4.1060 0.2655 0.0010 0.0000 CONSTANT D(FEDERAL FUNDS RATE) D(EXPECTED INFLATION (T-1)) D(TREASURY FUTURES (30-YEAR)) D(EXPECTED EURODOLLAR DEPOSIT RATE ) DLOG(DOW-JONES FUTURES)*100 AR(1) R-squared Adjusted R-squared S.E. of regression Sum squared resid Log likelihood Durbin-Watson stat 0.9332 0.9330 0.0134 0.4013 6494.4 2.0276 Inverted AR Roots Mean dependent var S.D. dependent var Akaike info criterion Schwarz criterion F-statistic Prob(F-statistic) -.16 Chow Forecast Test: Forecast from 1/23/2006 to 5/12/2006 F-statistic Log likelihood ratio 0.487868 40.24136 Prob. F(80,2156) Prob. Chi-Square(80) 48 0.999962 0.999940 -0.0004 0.0518 -5.7846 -5.7667 5206.4 0.0000 Dependent Variable: D(YIELD ON TREASURY SECURITIES ( 30-YEAR)) Method: Least Squares Sample (adjusted): 2/04/1997 5/12/2006 Included observations: 2419 after adjustments Convergence achieved after 5 iterations Newey-West HAC Standard Errors & Covariance (lag truncation=8) Variable Coefficient Std. Error t-Statistic Prob. -0.0001 -0.0175 0.0318 0.8876 0.0003 0.0087 0.0085 0.0149 -0.1839 -2.0139 3.7273 59.5370 0.8541 0.0441 0.0002 0.0000 -0.0002 -0.0594 -0.1915 0.0006 0.0150 0.0354 -0.3846 -3.9603 -5.4156 0.7005 0.0001 0.0000 CONSTANT D(FEDERAL FUNDS RATE) D(EXPECTED INFLATION (T-1)) D(TREASURY FUTURES (30-YEAR)) D(EXPECTED EURODOLLAR DEPOSIT RATE ) DUMMY30 AR(1) R-squared Adjusted R-squared S.E. of regression Sum squared resid Log likelihood Durbin-Watson stat 0.8199 0.8195 0.0209 1.0522 5929.4 2.0374 Mean dependent var S.D. dependent var Akaike info criterion Schwarz criterion F-statistic Prob(F-statistic) Inverted AR Roots -0.0006 0.0492 -4.8966 -4.8798 1830.5 0.0000 -.19 Chow Forecast Test: Forecast from 1/23/2006 to 5/12/2006 F-statistic Log likelihood ratio 1.016164 82.85465 Prob. F(80,2333) Prob. Chi-Square(80) 0.440397 0.391415 Notes: 1. Equations estimated for periods before February 10th do not include the dummy variable, DUMMY30, which is equal to one for February 9th and 10th of 2006 and zero for other periods. 2. Chow forecast test was conducted using the modified equation, without the dummy variable. 49 APPENDIX B. ACTUAL, EX-ANTE FORECASTS AND ERRORS obs 1/23/2006 1/24/2006 1/25/2006 1/26/2006 1/27/2006 1/30/2006 1/31/2006 2/1/2006 2/2/2006 2/3/2006 1-month 3.96 4.00 4.24 4.20 4.17 4.21 4.23 4.36 4.31 4.32 3-month 4.37 4.38 4.41 4.42 4.45 4.47 4.51 4.48 4.47 4.48 6-month 4.49 4.50 4.53 4.55 4.54 4.58 4.66 4.61 4.59 4.62 1-year 4.44 4.46 4.50 4.53 4.52 4.57 4.60 4.61 4.70 4.61 2-year 4.36 4.37 4.44 4.49 4.49 4.53 4.54 4.58 4.68 4.58 3-year 4.31 4.33 4.39 4.44 4.46 4.49 4.48 4.54 4.53 4.54 5-year 4.30 4.32 4.40 4.44 4.44 4.47 4.47 4.52 4.64 4.51 7-year 4.32 4.34 4.42 4.47 4.45 4.49 4.49 4.53 4.59 4.52 10-year 4.37 4.38 4.47 4.53 4.52 4.54 4.54 4.57 4.58 4.56 20-year 4.59 4.62 4.71 4.76 4.74 4.77 4.75 4.76 4.62 4.68 30-year 4.53 4.56 4.61 4.65 4.65 4.70 4.66 4.70 4.69 4.64 1-month 3.98 4.24 4.22 4.17 4.19 4.18 4.37 4.36 4.32 4.31 3-month 4.38 4.40 4.42 4.45 4.45 4.48 4.47 4.53 4.48 4.48 6-month 4.50 4.51 4.54 4.54 4.55 4.62 4.59 4.70 4.62 4.63 1-year 4.45 4.46 4.51 4.52 4.54 4.59 4.58 4.70 4.61 4.62 2-year 4.35 4.37 4.46 4.49 4.51 4.52 4.54 4.69 4.59 4.59 3-year 4.31 4.33 4.41 4.45 4.46 4.47 4.49 4.54 4.54 4.54 5-year 4.30 4.32 4.41 4.44 4.45 4.46 4.47 4.67 4.51 4.50 Forecast Actual 7-year 4.31 4.34 4.43 4.46 4.47 4.49 4.49 4.59 4.53 4.51 10-year 4.36 4.40 4.49 4.53 4.52 4.54 4.53 4.59 4.57 4.54 20-year 4.59 4.63 4.72 4.76 4.75 4.77 4.74 4.59 4.76 4.70 30-year 4.54 4.53 4.62 4.66 4.70 4.67 4.69 4.69 4.68 4.64 Error (basis points) 1-month -1.84 -24.18 1.56 3.15 -1.58 2.69 -14.48 0.42 -1.32 1.23 3-month -0.83 -1.87 -1.27 -2.50 0.14 -0.80 4.32 -5.48 -1.29 -0.14 6-month -0.75 -0.81 -0.70 0.80 -1.35 -4.23 6.94 -9.45 -2.74 -0.97 1-year -0.51 -0.36 -1.16 0.69 -1.90 -2.29 2.22 -9.13 8.54 -1.36 2-year 1.28 0.09 -1.68 -0.19 -1.80 0.72 -0.46 -10.61 8.80 -1.03 3-year 0.15 -0.50 -1.73 -0.97 -0.33 1.56 -1.47 0.02 -0.52 0.01 5-year 0.12 0.22 -0.85 0.12 -0.76 0.91 0.14 -15.17 13.35 1.19 7-year 0.51 -0.39 -1.03 0.93 -1.98 0.29 0.05 -6.28 5.53 0.53 10-year 0.68 -1.54 -1.67 -0.39 0.17 0.23 0.72 -2.42 1.25 1.75 20-year -0.19 -1.37 -1.44 -0.28 -0.60 -0.42 1.09 17.17 -14.31 -1.93 30-year -1.05 Correct directional change? 3.32 -1.33 -0.84 -5.50 3.47 -2.76 0.96 0.59 0.35 1-month Y Y Y Y Y N Y Y Y N 3-month Y Y Y Y Y Y N Y Y N 6-month Y Y Y Y N Y N Y Y Y 1-year Y Y Y Y Y Y N Y Y N 2-year Y Y Y Y Y Y Y Y Y N 3-year Y Y Y Y Y Y Y Y N Y 5-year Y Y Y Y Y Y Y Y Y N 7-year Y Y Y Y N Y Y Y Y Y 10-year Y Y Y Y Y Y Y Y Y Y 20-year N Y Y Y Y Y Y N Y Y 30-year N N Y Y N N N Y Y Y 50 obs 2/6/2006 2/7/2006 2/8/2006 2/9/2006 2/10/2006 2/13/2006 2/14/2006 2/15/2006 2/16/2006 2/17/2006 1-month 4.33 4.34 4.32 4.32 4.32 4.37 4.40 4.41 4.37 4.38 3-month 4.50 4.48 4.49 4.50 4.52 4.55 4.55 4.55 4.55 4.54 6-month 4.66 4.67 4.68 4.67 4.67 4.72 4.71 4.72 4.70 4.67 1-year 4.65 4.65 4.67 4.66 4.67 4.71 4.71 4.71 4.70 4.67 2-year 4.61 4.62 4.63 4.64 4.69 4.68 4.70 4.69 4.71 4.65 3-year 4.57 4.56 4.60 4.62 4.64 4.67 4.68 4.68 4.68 4.64 5-year 4.53 4.51 4.54 4.55 4.58 4.58 4.61 4.61 4.60 4.55 7-year 4.52 4.53 4.57 4.54 4.58 4.59 4.61 4.61 4.59 4.55 10-year 4.55 4.56 4.59 4.55 4.57 4.59 4.61 4.61 4.60 4.55 20-year 4.70 4.72 4.75 4.73 4.75 4.76 4.79 4.79 4.77 4.72 30-year 4.64 4.64 4.66 4.59 4.49 4.54 4.58 4.59 4.57 4.52 1-month 4.32 4.33 4.34 4.32 4.36 4.38 4.42 4.39 4.38 4.39 3-month 4.48 4.49 4.50 4.52 4.53 4.55 4.55 4.55 4.55 4.54 6-month 4.68 4.67 4.67 4.67 4.70 4.71 4.72 4.70 4.69 4.69 1-year 4.66 4.65 4.66 4.66 4.70 4.70 4.71 4.70 4.69 4.68 2-year 4.62 4.61 4.64 4.66 4.69 4.68 4.69 4.71 4.69 4.66 3-year 4.57 4.57 4.61 4.62 4.67 4.66 4.68 4.68 4.67 4.64 5-year 4.51 4.52 4.55 4.55 4.59 4.58 4.61 4.60 4.59 4.55 7-year 4.52 4.54 4.55 4.55 4.59 4.58 4.61 4.60 4.59 4.54 10-year 4.55 4.57 4.56 4.54 4.59 4.58 4.62 4.61 4.59 4.54 20-year 4.69 4.73 4.75 4.72 4.76 4.76 4.80 4.78 4.77 4.71 30-year 4.61 4.64 4.67 4.51 4.55 4.56 4.60 4.58 4.57 4.51 Forecast Actual Error (basis points) 1-month 0.69 1.07 -1.78 -0.15 -3.61 -0.62 -1.73 1.94 -1.28 3-month 1.76 -1.31 -0.56 -1.82 -1.26 -0.08 -0.31 -0.01 -0.04 -0.98 0.39 6-month -2.18 -0.10 0.75 -0.13 -2.62 0.53 -0.78 1.52 0.58 -1.65 1-year -1.29 -0.03 0.72 0.42 -3.06 0.82 -0.15 0.98 0.80 -0.92 2-year -0.66 0.99 -0.78 -1.84 -0.41 0.40 1.37 -2.08 1.54 -0.57 3-year -0.38 -1.41 -0.91 -0.04 -3.24 0.84 -0.13 0.15 1.23 0.31 5-year 1.99 -0.58 -0.65 0.05 -0.88 0.23 -0.49 0.77 0.64 0.21 7-year -0.26 -0.99 1.71 -1.28 -0.88 0.83 -0.38 0.56 0.24 0.53 10-year -0.03 -1.10 3.45 0.93 -2.06 0.82 -1.47 0.40 1.32 0.89 20-year 1.09 -0.75 0.36 0.85 -1.37 0.39 -1.28 0.76 0.39 0.59 30-year 2.80 0.37 -0.83 7.76 -6.20 -1.85 -1.86 0.76 0.42 1.18 Y Y Y Y Y Y Y Correct directional change? 1-month Y Y N 3-month Y N Y Y N Y N N N Y 6-month Y Y Y N Y Y Y Y Y N 1-year Y Y Y Y Y Y Y Y Y Y 2-year Y Y Y Y Y Y Y N Y Y 3-year Y N Y Y Y Y Y Y N Y 5-year Y Y Y Y Y Y Y Y Y Y 7-year Y Y Y N Y Y Y Y Y Y 10-year Y Y N Y Y Y Y Y Y Y 20-year N Y Y Y Y Y Y Y Y Y 30-year Y Y Y Y N N Y Y Y Y 51 obs 2/20/2006 2/21/2006 2/22/2006 2/23/2006 2/24/2006 2/27/2006 2/28/2006 3/1/2006 3/2/2006 3/3/2006 1-month 4.40 4.41 4.41 4.42 4.44 4.46 4.50 4.46 4.43 4.46 3-month 4.56 4.54 4.56 4.57 4.59 4.62 4.61 4.62 4.60 4.62 6-month 4.71 4.70 4.72 4.71 4.72 4.75 4.74 4.74 4.75 4.76 1-year 4.69 4.69 4.72 4.70 4.72 4.74 4.73 4.74 4.74 4.76 2-year 4.66 4.68 4.69 4.71 4.72 4.76 4.70 4.71 4.74 4.74 3-year 4.64 4.66 4.67 4.68 4.70 4.71 4.67 4.69 4.69 4.75 5-year 4.55 4.57 4.57 4.61 4.62 4.66 4.61 4.63 4.66 4.70 7-year 4.54 4.56 4.55 4.59 4.58 4.62 4.56 4.60 4.64 4.69 10-year 4.54 4.56 4.55 4.57 4.56 4.60 4.55 4.58 4.63 4.67 20-year 4.71 4.72 4.69 4.71 4.70 4.73 4.69 4.74 4.79 4.84 30-year 4.51 4.52 4.51 4.51 4.51 4.54 4.51 4.54 4.60 4.65 1-month 4.39 4.42 4.44 4.44 4.45 4.48 4.47 4.45 4.45 4.45 3-month 4.54 4.56 4.57 4.59 4.60 4.62 4.62 4.60 4.62 4.62 6-month 4.69 4.73 4.70 4.73 4.73 4.76 4.74 4.75 4.75 4.75 1-year 4.68 4.73 4.69 4.73 4.73 4.76 4.73 4.74 4.74 4.75 2-year 4.66 4.71 4.68 4.72 4.74 4.74 4.69 4.71 4.72 4.76 3-year 4.64 4.68 4.66 4.70 4.70 4.71 4.67 4.68 4.72 4.75 5-year 4.55 4.59 4.57 4.63 4.64 4.66 4.61 4.63 4.68 4.71 7-year 4.54 4.58 4.55 4.58 4.60 4.61 4.57 4.60 4.66 4.69 10-year 4.54 4.57 4.53 4.56 4.58 4.59 4.55 4.59 4.64 4.68 20-year 4.71 4.72 4.68 4.70 4.71 4.74 4.70 4.74 4.80 4.84 30-year 4.51 4.53 4.48 4.51 4.52 4.55 4.51 4.56 4.62 4.66 Forecast Actual Error (basis points) 1-month 1.45 -0.64 -3.25 -1.93 -0.78 -1.61 2.72 1.12 -2.07 0.63 3-month 1.52 -1.74 -1.39 -1.70 -1.48 0.05 -0.65 2.30 -1.93 0.14 6-month 1.79 -3.27 1.81 -2.07 -0.84 -1.04 -0.22 -0.51 -0.06 0.84 1-year 1.12 -3.71 2.89 -2.53 -0.51 -1.65 0.29 0.20 0.38 0.53 2-year 0.42 -3.22 1.23 -0.55 -2.17 1.61 0.76 -0.13 1.53 -1.85 3-year 0.21 -1.66 0.74 -1.60 -0.21 -0.45 -0.06 1.47 -3.19 -0.38 5-year 0.36 -1.91 -0.04 -2.05 -1.58 -0.40 0.31 -0.14 -2.13 -1.01 7-year 0.22 -1.81 0.46 0.81 -1.60 0.86 -0.59 -0.02 -1.54 0.26 10-year 0.43 -0.97 1.57 0.63 -1.60 0.79 -0.31 -1.29 -0.89 -1.02 20-year 0.14 0.26 1.46 0.88 -0.54 -0.63 -0.58 -0.20 -1.45 -0.16 30-year 0.27 -0.86 2.50 -0.15 -0.83 -0.84 -0.10 -1.59 -2.13 -0.59 Correct directional change? 1-month Y Y N N Y Y N Y N Y 3-month Y Y N Y N Y N N Y Y 6-month Y Y Y Y N Y Y Y N Y 1-year Y Y Y Y N Y Y Y Y Y 2-year Y Y Y Y N Y Y Y Y Y 3-year Y Y Y Y N Y Y Y Y Y 5-year Y Y Y Y N Y Y Y Y Y 7-year Y Y Y Y Y Y Y Y Y Y 10-year Y Y Y Y Y Y Y Y Y Y 20-year Y Y Y Y Y Y Y Y Y Y 30-year Y Y Y Y Y Y Y Y Y Y 52 obs 3/6/2006 3/7/2006 3/8/2006 3/9/2006 3/10/2006 3/13/2006 3/14/2006 3/15/2006 3/16/2006 3/17/2006 1-month 4.47 4.46 4.46 4.43 4.45 4.47 4.46 4.48 4.47 4.49 3-month 4.64 4.60 4.60 4.58 4.60 4.64 4.59 4.59 4.62 4.61 6-month 4.77 4.77 4.76 4.76 4.78 4.80 4.79 4.80 4.77 4.77 1-year 4.77 4.77 4.76 4.75 4.77 4.78 4.75 4.75 4.73 4.72 2-year 4.79 4.77 4.76 4.72 4.74 4.75 4.67 4.68 4.64 4.64 3-year 4.77 4.77 4.78 4.76 4.80 4.80 4.74 4.73 4.66 4.63 5-year 4.74 4.76 4.75 4.74 4.77 4.78 4.70 4.70 4.63 4.62 7-year 4.73 4.74 4.75 4.73 4.76 4.78 4.71 4.71 4.64 4.63 10-year 4.72 4.73 4.74 4.72 4.75 4.77 4.70 4.73 4.67 4.67 20-year 4.89 4.91 4.91 4.90 4.93 4.94 4.89 4.93 4.87 4.89 30-year 4.70 4.72 4.72 4.71 4.73 4.75 4.71 4.74 4.70 4.72 1-month 4.44 4.47 4.45 4.44 4.46 4.45 4.49 4.50 4.49 4.50 3-month 4.60 4.60 4.58 4.60 4.62 4.61 4.59 4.63 4.62 4.64 6-month 4.77 4.77 4.77 4.77 4.78 4.83 4.80 4.81 4.77 4.78 1-year 4.77 4.77 4.76 4.76 4.77 4.80 4.75 4.77 4.72 4.74 2-year 4.77 4.77 4.72 4.72 4.74 4.74 4.66 4.69 4.62 4.65 3-year 4.77 4.79 4.77 4.77 4.80 4.81 4.72 4.72 4.62 4.64 5-year 4.76 4.76 4.75 4.75 4.77 4.78 4.68 4.69 4.60 4.62 7-year 4.74 4.75 4.74 4.74 4.76 4.78 4.69 4.70 4.61 4.63 10-year 4.74 4.74 4.73 4.74 4.76 4.77 4.71 4.73 4.65 4.68 20-year 4.91 4.91 4.91 4.91 4.93 4.95 4.89 4.93 4.86 4.89 30-year 4.72 4.72 4.72 4.72 4.74 4.77 4.71 4.75 4.70 4.72 Forecast Actual Error (basis points) 1-month 2.54 -1.01 0.87 -1.15 -1.41 2.33 -2.81 -1.94 -1.80 3-month 3.92 -0.38 2.02 -2.19 -2.29 2.77 0.43 -4.03 0.06 -0.62 -2.54 6-month 0.43 -0.45 -0.71 -0.58 -0.34 -3.38 -0.88 -1.00 0.08 -1.16 1-year 0.17 -0.25 0.30 -0.55 0.50 -1.86 -0.03 -1.52 1.13 -1.66 2-year 1.78 0.11 4.11 -0.22 0.04 1.31 0.74 -1.47 1.53 -1.11 3-year -0.11 -1.90 1.14 -0.54 -0.13 -0.93 1.62 1.39 4.37 -0.91 5-year -2.16 -0.29 -0.19 -0.57 -0.14 0.42 1.85 0.78 3.21 0.34 7-year -0.67 -1.34 0.69 -1.34 -0.44 -0.49 1.82 1.31 2.68 0.08 10-year -1.87 -0.50 0.61 -2.34 -0.71 0.47 -0.70 0.12 2.09 -1.04 20-year -2.32 -0.48 0.45 -0.52 -0.43 -0.73 0.15 -0.38 1.40 -0.49 30-year -1.82 -0.38 0.34 -0.55 -0.67 -1.93 0.48 -0.70 -0.12 -0.10 Y Y N Y N Y Y Correct directional change? 1-month N Y Y 3-month N N N N N N Y N Y N 6-month Y N N N Y Y Y Y Y N 1-year Y N Y N Y Y Y Y Y Y 2-year Y Y Y N Y Y Y Y Y Y 3-year Y Y Y N Y Y Y Y Y Y 5-year Y N Y N Y Y Y Y Y Y 7-year Y N Y N Y Y Y Y Y Y 10-year Y N Y N Y Y Y Y Y Y 20-year Y N Y N Y Y Y Y Y Y 30-year Y N Y N Y Y Y Y Y Y 53 obs 3/20/2006 3/21/2006 3/22/2006 3/23/2006 3/24/2006 3/27/2006 3/28/2006 3/29/2006 3/30/2006 3/31/2006 1-month 4.51 4.59 4.66 4.65 4.66 4.68 4.71 4.70 4.67 4.67 3-month 4.65 4.67 4.69 4.70 4.66 4.67 4.66 4.65 4.63 4.60 6-month 4.80 4.81 4.82 4.82 4.78 4.81 4.86 4.83 4.84 4.83 1-year 4.75 4.78 4.80 4.79 4.77 4.78 4.81 4.82 4.84 4.83 2-year 4.65 4.70 4.72 4.78 4.71 4.74 4.79 4.82 4.84 4.83 3-year 4.65 4.68 4.72 4.74 4.69 4.69 4.75 4.80 4.83 4.83 5-year 4.62 4.67 4.68 4.73 4.66 4.69 4.76 4.80 4.82 4.82 7-year 4.61 4.68 4.68 4.75 4.66 4.68 4.76 4.82 4.83 4.82 10-year 4.66 4.72 4.70 4.75 4.67 4.69 4.76 4.81 4.84 4.85 20-year 4.87 4.91 4.90 4.93 4.88 4.89 4.96 5.01 5.05 5.07 30-year 4.71 4.74 4.73 4.75 4.70 4.72 4.78 4.82 4.87 4.89 1-month 4.56 4.67 4.67 4.66 4.66 4.66 4.71 4.69 4.67 4.65 3-month 4.66 4.69 4.69 4.67 4.65 4.63 4.65 4.63 4.61 4.63 6-month 4.79 4.82 4.81 4.81 4.78 4.80 4.83 4.83 4.84 4.81 1-year 4.74 4.79 4.78 4.80 4.76 4.77 4.82 4.83 4.84 4.82 2-year 4.65 4.72 4.74 4.77 4.72 4.72 4.81 4.82 4.84 4.82 3-year 4.62 4.71 4.72 4.74 4.67 4.69 4.79 4.81 4.84 4.83 5-year 4.61 4.68 4.69 4.73 4.66 4.69 4.79 4.79 4.83 4.82 7-year 4.62 4.69 4.70 4.73 4.66 4.69 4.79 4.79 4.83 4.83 10-year 4.66 4.71 4.70 4.73 4.67 4.70 4.79 4.81 4.86 4.86 20-year 4.87 4.91 4.91 4.93 4.87 4.91 4.98 5.02 5.07 5.07 30-year 4.70 4.74 4.73 4.75 4.70 4.73 4.80 4.84 4.89 4.90 Forecast Actual Error (basis points) 1-month -4.72 -8.39 -0.86 -0.97 -0.31 1.52 0.16 1.10 0.07 2.15 3-month -0.69 -1.81 -0.19 2.54 1.15 4.08 1.38 1.95 1.95 -2.72 6-month 0.76 -0.71 1.10 0.59 0.25 0.70 3.20 -0.11 -0.42 2.45 1-year 1.34 -1.46 1.71 -0.92 0.51 1.42 -0.57 -0.77 0.04 1.26 2-year -0.28 -1.86 -1.64 0.70 -0.95 2.26 -1.59 0.38 0.44 1.22 3-year 2.55 -3.22 0.41 0.11 1.82 0.22 -4.33 -1.04 -1.42 0.41 5-year 0.77 -1.03 -0.56 0.25 0.49 -0.45 -2.65 1.04 -0.99 -0.02 7-year -0.67 -0.96 -1.58 2.02 0.29 -0.61 -3.30 2.57 -0.45 -0.92 10-year 0.46 0.59 0.42 1.72 -0.16 -0.72 -3.15 0.20 -1.72 -0.98 20-year 0.29 0.34 -0.86 0.44 0.92 -1.55 -1.56 -1.03 -1.51 0.13 30-year 0.55 -0.11 0.05 0.36 0.48 -0.87 -2.06 -1.55 -1.90 -0.99 Correct directional change? 1-month Y Y N Y N Y Y Y Y N 3-month Y Y N N Y N Y Y Y N 6-month Y Y N Y Y Y Y N Y Y 1-year Y Y N Y Y Y Y Y Y Y 2-year N Y Y Y Y Y Y Y Y Y 3-year N Y Y Y Y Y Y Y Y Y 5-year Y Y Y Y Y Y Y Y Y Y 7-year Y Y N Y Y Y Y Y Y N 10-year Y Y Y Y Y Y Y Y Y N 20-year Y Y N Y Y Y Y Y Y Y 30-year Y Y Y Y Y Y Y Y Y Y 54 obs 4/3/2006 4/4/2006 4/5/2006 4/6/2006 4/7/2006 4/10/2006 4/11/2006 4/12/2006 4/13/2006 4/14/2006 1-month 4.67 4.68 4.63 4.60 4.66 4.65 4.66 4.62 4.60 4.54 3-month 4.65 4.66 4.67 4.67 4.69 4.71 4.68 4.70 4.70 4.70 6-month 4.84 4.84 4.83 4.83 4.87 4.87 4.88 4.89 4.92 4.94 1-year 4.85 4.84 4.83 4.83 4.88 4.87 4.88 4.90 4.92 4.95 2-year 4.84 4.84 4.81 4.84 4.88 4.89 4.87 4.91 4.94 4.96 3-year 4.86 4.82 4.80 4.81 4.87 4.89 4.87 4.89 4.92 4.96 5-year 4.84 4.83 4.79 4.82 4.89 4.89 4.86 4.90 4.95 4.96 7-year 4.85 4.84 4.81 4.84 4.91 4.92 4.89 4.92 4.98 5.00 10-year 4.88 4.87 4.84 4.87 4.95 4.97 4.94 4.97 5.02 5.05 20-year 5.08 5.07 5.07 5.12 5.18 5.20 5.18 5.21 5.27 5.28 30-year 4.91 4.90 4.89 4.94 5.01 5.04 5.02 5.04 5.09 5.11 1-month 4.66 4.64 4.62 4.65 4.64 4.64 4.63 4.62 4.54 4.54 3-month 4.67 4.68 4.67 4.68 4.69 4.69 4.70 4.70 4.70 4.70 6-month 4.86 4.85 4.83 4.85 4.85 4.89 4.88 4.91 4.94 4.94 1-year 4.86 4.85 4.82 4.85 4.86 4.89 4.88 4.91 4.95 4.95 2-year 4.86 4.84 4.81 4.84 4.89 4.89 4.88 4.91 4.96 4.96 3-year 4.85 4.83 4.79 4.83 4.89 4.89 4.86 4.90 4.96 4.96 5-year 4.85 4.82 4.79 4.84 4.89 4.89 4.86 4.91 4.97 4.97 7-year 4.86 4.84 4.80 4.86 4.92 4.92 4.88 4.93 5.00 5.00 10-year 4.88 4.87 4.84 4.90 4.97 4.97 4.93 4.98 5.05 5.05 20-year 5.08 5.09 5.07 5.13 5.20 5.21 5.17 5.22 5.28 5.28 30-year 4.90 4.91 4.90 4.96 5.04 5.04 5.00 5.05 5.11 5.11 Forecast Actual Error (basis points) 1-month 0.60 3.86 0.73 -4.88 1.75 1.20 2.83 0.33 6.28 0.25 3-month -1.97 -1.68 0.00 -0.85 -0.45 1.54 -1.70 0.09 -0.03 -0.29 6-month -1.92 -0.59 0.40 -1.60 1.60 -2.31 -0.22 -2.04 -2.47 -0.46 1-year -0.87 -0.97 0.90 -1.89 1.57 -1.86 -0.32 -1.38 -2.65 -0.28 2-year -1.89 0.15 0.44 -0.38 -0.71 0.01 -1.43 0.01 -1.74 -0.20 3-year 1.20 -0.78 1.49 -2.06 -1.68 0.16 1.21 -1.12 -3.56 -0.05 5-year -0.91 0.92 0.31 -1.98 -0.44 -0.15 0.41 -1.47 -2.45 -0.50 7-year -0.51 0.48 0.65 -2.35 -0.57 -0.04 0.98 -0.73 -2.45 -0.02 10-year 0.37 -0.37 -0.16 -2.62 -2.12 -0.03 1.17 -0.93 -2.83 -0.26 20-year -0.08 -1.67 -0.11 -1.29 -1.50 -1.19 1.33 -1.08 -1.36 -0.18 30-year 0.65 -1.43 -1.05 -1.92 -3.13 -0.50 1.84 -1.38 -1.97 -0.32 N Y N Y Y Y Correct directional change? 1-month Y N Y N 3-month Y N Y Y Y Y N Y N N 6-month Y Y Y Y Y Y Y Y Y N 1-year Y Y Y Y Y Y Y Y Y N 2-year Y Y Y Y Y Y Y Y Y N 3-year Y Y Y Y Y Y Y Y Y N 5-year Y Y Y Y Y N Y Y Y N 7-year Y Y Y Y Y N Y Y Y N 10-year Y Y Y Y Y N Y Y Y N 20-year Y N Y Y Y N Y Y Y N 30-year Y N Y Y Y N Y Y Y N 55 obs 4/17/2006 4/18/2006 4/19/2006 4/20/2006 4/21/2006 4/24/2006 4/25/2006 4/26/2006 4/27/2006 4/28/2006 1-month 4.55 4.56 4.53 4.52 4.55 4.59 4.60 4.62 4.62 4.64 3-month 4.72 4.71 4.72 4.73 4.73 4.76 4.76 4.79 4.78 4.77 6-month 4.94 4.90 4.90 4.90 4.90 4.91 4.95 4.97 4.95 4.91 1-year 4.94 4.90 4.89 4.90 4.91 4.90 4.95 4.97 4.94 4.90 2-year 4.93 4.88 4.86 4.88 4.89 4.88 4.94 4.98 4.94 4.88 3-year 4.93 4.86 4.88 4.89 4.90 4.88 4.92 4.98 4.93 4.88 5-year 4.94 4.89 4.89 4.92 4.92 4.90 4.96 5.01 4.97 4.92 7-year 4.97 4.92 4.95 4.97 4.96 4.93 5.01 5.05 5.02 4.98 10-year 5.02 4.98 5.02 5.05 5.03 4.99 5.05 5.10 5.08 5.07 20-year 5.25 5.23 5.28 5.29 5.26 5.22 5.29 5.33 5.33 5.31 30-year 5.09 5.06 5.11 5.13 5.11 5.08 5.13 5.17 5.17 5.17 1-month 4.55 4.54 4.54 4.55 4.58 4.58 4.63 4.65 4.64 4.60 3-month 4.72 4.72 4.73 4.73 4.75 4.75 4.79 4.79 4.78 4.77 6-month 4.93 4.90 4.90 4.90 4.90 4.93 4.96 4.98 4.93 4.91 1-year 4.93 4.88 4.89 4.90 4.90 4.92 4.95 4.98 4.93 4.90 2-year 4.91 4.84 4.86 4.89 4.90 4.89 4.95 4.99 4.91 4.87 3-year 4.91 4.86 4.87 4.89 4.89 4.88 4.94 4.99 4.92 4.87 5-year 4.93 4.87 4.91 4.92 4.92 4.90 4.98 5.02 4.95 4.92 7-year 4.96 4.92 4.96 4.97 4.95 4.94 5.02 5.06 5.00 4.98 10-year 5.01 4.99 5.04 5.04 5.01 4.99 5.07 5.12 5.09 5.07 20-year 5.25 5.23 5.29 5.29 5.25 5.22 5.31 5.34 5.32 5.31 30-year 5.08 5.07 5.13 5.14 5.10 5.07 5.16 5.18 5.18 5.17 Forecast Actual Error (basis points) 1-month -0.09 2.48 -0.78 -2.89 -2.56 1.06 -2.63 -2.58 -1.59 3.92 3-month -0.41 -0.97 -1.01 0.06 -1.93 1.48 -3.32 0.30 0.02 -0.01 6-month 1.06 -0.02 0.46 0.30 0.19 -1.93 -1.35 -0.66 1.65 -0.16 1-year 0.97 1.53 0.09 -0.24 0.63 -1.79 -0.37 -0.69 0.84 0.43 2-year 2.38 3.59 0.20 -1.32 -1.33 -0.52 -1.02 -0.87 3.25 1.19 3-year 1.66 0.45 0.93 -0.15 1.18 -0.16 -1.71 -1.07 0.95 1.35 5-year 1.03 1.97 -1.60 0.39 -0.22 0.41 -2.20 -0.72 1.63 -0.08 7-year 1.06 0.33 -0.89 0.33 0.67 -1.09 -1.19 -0.79 2.18 -0.43 10-year 1.34 -1.29 -2.17 1.20 1.74 0.28 -1.70 -2.14 -0.74 -0.29 20-year 0.43 0.39 -1.08 0.01 0.98 0.28 -2.05 -1.12 1.20 0.05 30-year 0.76 -0.51 -1.71 -1.12 1.03 0.65 -2.70 -0.59 -0.62 -0.11 Correct directional change? 1-month Y N N N Y Y Y N Y Y 3-month Y N N Y Y Y Y Y Y Y 6-month N Y Y Y Y Y Y Y Y Y 1-year Y Y Y Y Y Y Y Y Y Y 2-year Y Y Y Y N Y Y Y Y Y 3-year Y Y Y Y Y Y Y Y Y Y 5-year Y Y Y Y N Y Y Y Y Y 7-year Y Y Y Y Y Y Y Y Y Y 10-year Y Y Y Y Y Y Y Y Y Y 20-year Y Y Y Y Y Y Y Y Y Y 30-year Y Y Y N Y Y Y Y N Y 56 obs 5/1/2006 5/2/2006 5/3/2006 5/4/2006 5/5/2006 5/8/2006 5/9/2006 5/10/2006 5/11/2006 5/12/2006 1-month 4.62 4.63 4.65 4.63 4.61 4.62 4.66 4.74 4.67 4.64 3-month 4.80 4.82 4.81 4.82 4.80 4.85 4.87 4.90 4.88 4.82 6-month 4.95 4.98 4.98 5.00 5.00 5.02 5.03 5.07 5.03 4.99 1-year 4.94 4.97 4.97 4.99 4.98 5.00 5.01 5.03 5.02 4.99 2-year 4.92 4.93 4.94 4.95 4.94 4.95 4.97 4.99 5.01 5.01 3-year 4.92 4.95 4.95 4.98 4.97 4.97 4.99 4.99 4.99 5.02 5-year 4.98 4.98 5.01 5.02 5.00 5.00 5.01 5.03 5.03 5.06 7-year 5.04 5.03 5.06 5.07 5.04 5.03 5.05 5.06 5.07 5.11 10-year 5.13 5.13 5.15 5.16 5.12 5.12 5.12 5.13 5.14 5.17 20-year 5.36 5.36 5.38 5.38 5.35 5.34 5.34 5.34 5.37 5.43 30-year 5.21 5.21 5.23 5.24 5.20 5.19 5.19 5.19 5.22 5.27 1-month 4.61 4.66 4.65 4.61 4.61 4.64 4.72 4.69 4.64 4.64 3-month 4.82 4.81 4.82 4.80 4.83 4.87 4.88 4.88 4.82 4.85 6-month 4.98 4.98 5.00 5.01 5.00 5.03 5.03 5.03 4.99 5.00 1-year 4.97 4.96 4.98 5.00 4.98 5.01 5.01 5.02 4.99 5.00 2-year 4.94 4.92 4.94 4.97 4.94 4.97 4.97 5.01 4.99 5.01 3-year 4.95 4.94 4.96 4.99 4.96 4.99 4.98 5.00 5.01 5.03 5-year 4.99 4.98 5.01 5.03 4.99 5.01 5.01 5.03 5.04 5.08 7-year 5.04 5.03 5.06 5.08 5.03 5.05 5.05 5.06 5.07 5.12 10-year 5.14 5.12 5.15 5.16 5.12 5.12 5.13 5.13 5.14 5.19 20-year 5.38 5.35 5.38 5.38 5.35 5.34 5.35 5.34 5.38 5.44 30-year 5.23 5.20 5.24 5.23 5.20 5.19 5.20 5.19 5.23 5.29 Forecast Actual Error (basis points) 1-month 0.62 -3.08 0.30 2.24 -0.06 -1.69 -5.95 4.76 2.87 0.22 3-month -1.97 0.72 -0.96 2.02 -3.11 -2.23 -0.81 2.40 6.19 -2.89 6-month -3.09 -0.48 -1.83 -0.68 -0.48 -0.63 -0.48 4.01 3.51 -1.01 1-year -2.70 0.61 -1.40 -0.83 0.48 -1.43 -0.21 0.55 2.56 -0.77 2-year -1.56 1.21 0.42 -1.99 0.23 -2.01 0.21 -1.96 2.00 0.06 3-year -2.82 0.78 -0.68 -0.83 1.09 -1.95 1.03 -0.58 -1.66 -1.27 5-year -1.26 -0.04 -0.32 -1.03 0.83 -0.85 0.40 -0.49 -0.72 -1.79 7-year 0.27 -0.33 0.16 -1.34 1.03 -1.67 0.24 -0.44 0.43 -1.27 10-year -0.96 0.75 -0.07 -0.43 0.23 0.46 -0.68 0.19 0.28 -1.52 20-year -2.13 1.09 0.35 -0.17 -0.42 -0.02 -0.56 0.04 -1.17 -1.30 30-year -1.52 1.31 -0.95 0.54 0.00 0.09 -0.61 0.07 -1.33 -1.78 Y Y Y N Y Y N Y Y Correct directional change? 1-month Y 3-month Y Y Y N N Y Y Y N Y 6-month Y N Y Y Y Y N Y Y N 1-year Y Y Y Y Y Y N Y Y Y 2-year Y Y Y Y Y Y Y Y N Y 3-year Y Y Y Y Y Y N Y N Y 5-year Y Y Y Y Y Y Y Y Y Y 7-year Y Y Y Y Y Y Y Y Y Y 10-year Y Y Y Y Y Y Y Y Y Y 20-year Y Y Y N Y Y Y Y Y Y 30-year Y Y Y Y Y Y Y Y Y Y 57 APPENDIX C. DATA SOURCES & DEFINITIONS DF01 SELECTED INTEREST RATES\Average Effective Rate of Federal Funds\UNITS Percent Per Annum\SOURCE: Federal Reserve, H.15 (Selected Interest Rates) DF29 YIELD ON U.S. TREASURY SECURITIES WITH\CONSTANT MATURITY\1Month\UNITS Percent\SOURCE: Treasury Dept (Treasury Yield Curve Rates) DF78 BOND YIELDS\Yield on U.S. Treasury Securities Adjusted to Constant Maturity\3-Month\UNITS Percent\SOURCE: Federal Reserve (H.15, Selected Interest Rates) DF79 BOND YIELDS\Yield on U.S. Treasury Securities Adjusted to Constant Maturity\6-Month\UNITS Percent\SOURCE: Federal Reserve (H.15, Selected Interest Rates) DF23 BOND YIELDS\Yield on U.S. Treasury Securities Adjusted to Constant Maturity\1-Year\UNITS Percent\SOURCE: Federal Reserve (H.15, Selected Interest Rates) DF24 BOND YIELDS\Yield on U.S. Treasury Securities Adjusted to Constant Maturity\2-Years\UNITS Percent\SOURCE: Federal Reserve (H.15, Selected Interest Rates) DF25 BOND YIELDS\Yield on U.S. Treasury Securities Adjusted to Constant Maturity\3-Years\UNITS Percent\SOURCE: Federal Reserve (H.15, Selected Interest Rates) DF26 BOND YIELDS\Yield on U.S. Treasury Securities Adjusted to Constant Maturity\5-Years\UNITS Percent\SOURCE: Federal Reserve (H.15, Selected Interest Rates) DF27 BOND YIELDS\Yield on U.S. Treasury Securities Adjusted to Constant Maturity\7-Years\UNITS Percent\SOURCE: Federal Reserve (H.15, Selected Interest Rates) DF28 BOND YIELDS\Yield on U.S. Treasury Securities Adjusted to Constant Maturity\10-Years\UNITS Percent\SOURCE: Federal Reserve (H.15, Selected Interest Rates) DF73 DF30A BOND YIELDS\Yield on U.S. Treasury Securities Adjusted to Constant Maturity\20-Years\UNITS Percent\SOURCE: Federal Reserve (H.15, Selected Interest Rates) BOND YIELDS\Yield on U.S. Treasury Securities Adjusted to Constant Maturity\30-Years\UNITS Percent\SOURCE: Calculated by DRI-WEFA by adding an extrapolation value provided by the Federal Reserve to the 20 year Constant Maturity rate (DF73) published in the H.15 press report.\Prior to 6/1/2004 this series was calculated from the Long Term Treasury Constant maturity rate (DF301). DF01A SELECTED INTEREST RATES\Federal Funds Rate Target\UNITS Percent Per Annum\SOURCE: Federal Reserve Bank of New York DF144 EXCHANGE RATES\DAILY NOON BUYING RATES\UNITED KINGDOM\UNITS US DOLLARS PER POUND\SOURCE: FEDERAL RESERVE, H.10 (FOREIGN INTEREST RATES) DF152 SELECTED INTEREST RATES\EURODOLLAR DEPOSITS, 6MONTH\UNITS PERCENT PER ANNUM\SOURCE: FR, H.15 (SELECTED INTEREST RATES) 58 DF233 BOND YIELDS\Yield on U.S. Treasury Securities Adjusted to Constant Maturity, Inflation Indexed\10 Year\UNITS Percent\SOURCE: Federal Reserve (H.15, Selected Interest Rates) DF69 GOLD PRICE, LONDON P.M. FIXING\US $ AND CENT PER TROY OUNCE\SOURCE: DAILY PRESS DF70 INTERNATIONAL FINANCIAL INDICATORS, DETAILS\Silver\UNITS Dollars per Troy Ounce\SOURCE: Financial Times (London Bullion Market) DSPWTXI PRICES\DOMESTIC SPOT MARKET\WEST TEXAS INTERMEDIATE CUSH\UNITS DOLLARS PER BARREL\SOURCE: DAILY PRESS PCFWTC PRICES\FUTURES\CRUDE OIL, LIGHT SWEET (NYM)\CLOSE FOR THE DAY\UNITS DOLLARS PER BARREL\SOURCE: DAILY PRESS DF24FUTURES 2-year treasury yield futures, Source: Bloomberg, Decision Economics, Inc. DF26FUTURES 5-year treasury yield futures, Source: Bloomberg, Decision Economics, Inc. DF28FUTURES 10-year treasury yield futures, Source: Bloomberg, Decision Economics, Inc. DF30FUTURES 30-year treasury yield futures, Source: Bloomberg, Decision Economics, Inc. DF36FUTURES Dow-Jones industrialist futures, Source: Bloomberg, Decision Economics, Inc. ______________________________________________________________________ Source: Global Insight Daily Financial Data Bank, except data on futures, which are available from Bloomberg, and provided by Decision Economics, Inc. researcher Josh White. 59