Channels of Monetary Influence

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• The Keynesian Framework: A Structural Model
Y = C + I + G + NX
C = c0 + mpc (Y - T)
I = I0 - b1i + b2Y
The Monetarist Framework: A Black Box
MV = PY
… Speculators may do no harm as bubbles on a stream of
steady enterprise. But the position is serious when
enterprise becomes a bubble on a whirlpool of speculation.
When the capital development of a country becomes a byproduct of the activities of a casino, the job is likely to be
ill-done.
John Maynard Keynes
The General Theory of Employment, Interest and Money
Channels of Monetary Influence: Follow the Footnotes
Keynes, John Maynard
1936
The General Theory of Employment, Interest and Money
Hicks, John
1937
Mr. Keynes and the Classics: A Suggested Interpretation
Friedman, Milton ed.
1957
Studies in the Quantity Theory of Money
Friedman, M. and Anna
Schwartz
1963
A Monetary History of the United States
Econometrica
Keynesian - Monetarist Debates
• Keynesians: Monetary policy does not matter
– Low interest rates during the Great Depression 
expansionary monetary policy  didn’t help
– Nominal interest rates don’t affect investment
• Surveys confirmed investment in physical capital not
based on market interest rates
• Monetarists: Money matters most
• Depression -- The Great Contraction
– Deflation  high real interest rates
– Interest-rate effects are only one of many channels
• But is there reverse causation?
Beware Financial Instability!
• … small events at times have large consequences, there are
such things as chain reactions and cumulative forces. It
happens that a liquidity crisis in a fractional reserve banking
system is precisely the kind of event that can trigger – and often
has triggered – a chain reaction. And economic collapse often
has the character of a cumulative process. Let it go beyond a
certain point, and it will tend for a time to gain strength from its
own development as its effects spread and return to intensify
the process of collapse. Because no great strength would be
required to hold back the rock that starts a landslide, it does not
follow that the landslide will not be of major proportions.
• Milton Friedman and Anna Jacobson Schwartz, A Monetary History of the United
States, 1867 – 1960, p. 419.
Channels of Monetary Influence: Follow the Footnotes
Keynes, John Maynard
1936
The General Theory of Employment, Interest and Money
Hicks, John
1937
Mr. Keynes and the Classics: A Suggested Interpretation
Friedman, Milton ed.
1957
Studies in the Quantity Theory of Money
Friedman, M. and Anna
Schwartz
1963
A Monetary History of the United States
Tobin, James
1970
Money and Income: Post Hoc, Ergo Proctor Hoc
QJE
Friedman, M. and D.
Meisselman
1963
The Relative Stability of Monetary Velocity and the Investment Multiplier
Commission on
Money & Credit
Ando, A. and Franco
Modigliani
1965
The Relative Stability of Monetary Velocity and the Investment Multiplier
AER
Andersen, L. and Jerry Jordan
1968
Monetary and Fiscal Actions: A Test of Their Relative Importance
Econometrica
FRBStL Review
Poole, Wm. and Edith Kornblith
1973
The Friedman-Meisselman CMC Paper: New Evidence on an Old
Controversy
AER
Tobin, James
1969
A General Equilibrium Approach to Monetary Theory
JMCB
Modigliani, Franco
1971
Monetary Policy and Consumption, in Consumer Spending & Monetary
Policy
FRBB
Lucas, Robert
1976
Econometric Policy Evaluation: A Critique
Carnegie-Rochester
King, R. and Charles Plosser
‘89
Plosser, Charles
1989
Money, Credit and Prices in a Real Business Cycle
Understanding Real Business Cycles
AER
AER
Channels of Monetary Influence: Follow the Footnotes
Romer, D. and Christina Romer
‘89
Does Monetary Policy Matter?
NBER Macro Annual
Blanchard, O. and Larry Summers
‘84
Perspectives on High World Interest Rates
Brookings Papers
Huizinga, J. and Fredric Mishkin
’86
Monetary Regime Shifts and the Unusual Behavior of Real Interest Rates
Carnegie-Rochester
Mishkin, Fredric
1981
The Real Interest Rate
Carnegie-Rochester
Bosworth, Barry
1975
The Stock Market and the Economy
Brookings Papers
Taylor, John
1995
The Monetary Transmission Mechanism: An Empirical Framework
JEP
Bernanke, B. and Mark Gertler
1995
Inside the Black Box: The Credit Channel of Monetary Transmission
JEP
Bryant R., Hooper and Mann
1993
Evaluating Policy Regimes
Taylor, John
1993
Macroeconomic Policy in a World Economy
Tobin, James
1969
A General Equilibrium Approach to Monetary Theory
JMCB
Bosworth, Barry
1975
The Stock Market and the Economy
Brookings Papers
Modigliani, Franco
1971
Monetary Policy and Consumption, in Consumer Spending & Monetary Policy
FRBB
Bernanke, Ben
1993
Credit in the Macroeconomy
FRBNY Quarterly Review
Cecchetti, Stephern
1995
Distinguishing Theories of Monetary Transmission Mechanisms
FRBStL Review
Hubbard, R. Glenn
1995
Is There a "Credit Channel" for Monetary Policy?
FRBStL Review
Ramey, Valery
1993
How Important is the Credit Channel in the Transmission of Monetary Policy?
Carnegie-Rochester
Meltzer, Allan
1995
Monetary, Credit and (Other) Transmission Processes: A Monetarist View
JEP
Mishkin, Fredric
1978
The Household Balance Sheet and the Great Depression
Jrl. of Economic History
Mishkin, Fredric
1977
What Depressed the Consumer: The Hshld Balance Sheet and 1973-75 Recess
Brookings Papers
Gertler, M. and Simon Gilchrist
1994
Monetary Policy, Business Cycles, and the Behavior of Small Mfg. Firms
QJE
Ito, T. and Fredric Mishkin
2004
Two Decades of Japanese Monetary Policy and the Deflation Problem
NBER WP # 10878
Lessons for Monetary Policy
• Don’t associate the stance of monetary policy
with ups and downs of short-term nominal
interest rates
• Other asset prices are important elements in
various monetary policy transmission
mechanisms
– Monetary policy can be highly effective in reviving
a weak economy even if short-term interest rates
are already near zero
– Pump up liquidity … pump up asset prices
Lessons for Monetary Policy
(cont’d)
• Monetary policy can be highly effective in
reviving a weak economy even if short-term
interest rates are already near zero
• Avoiding unanticipated fluctuations in the price
level is an important objective of monetary
policy, thus providing a rationale for price
stability as the primary long-run goal for
monetary policy
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