Proceedings of Paris Economics, Finance and Business Conference 13 - 15 April 2015, Crowne Plaza Hotel Republique, Paris, France, ISBN: 978-1-922069-73-3 Credit and External Bank Position in the Euro Area: An Empirical Investigating Using Aggregation Data Jingyang Liu The financial crisis and sovereign debt crisis have shown that cross border bank position and the excess amount of credit in Europe are strongly correlated. These correlations tend to increase since the establishment of euro area and show a regime shift during financial crisis, which may give rise to financial fragility and macroeconomic imbalance. In this paper, on one hand, we focus on disentangling the effect of cross border euro area bank positions, either to euro area countries or to the rest of the world, on the creation of domestic private credit in the euro area. One the other hand, we focus on figuring out from which side the effect comes, by involving bank capital and reserve growth which affect the creation from supply side and capacity utilization which affect the creation from demand side. The analysis allows an assessment of how to avoid the macroeconomic imbalance by either monetary prudence or bank regulation. Our empirical analysis uses external bank positions and domestic private credit for a sample of euro area (based on 10 original countries except Luxemburg and Greece) over the period: 1999Q1 -- 2013Q3. As in most literatures studying the euro area macro-economy issue using constructed data series, one important problem is the choice of the method for aggregating the national data. We apply GDP weighted approach instead of directly adding up the stock value of credit even though the series of 10 member countries are expressed by a single currency, to keep consistent with the method of the aggregation of long term bank interest rate denoted by 10 year government bond yield. Our further analysis proceeds in three steps. First, we carry out P.Perron(1997) and Clemente-MontanesReyes(1998) test for unit root test, which allow a single structure break in time series. Considering the test accept the null hypothesis of unit root, we shift to use Augmented Dickey-Fuller test and Phillips-Perron test and find out the data series are all integrated at the order one. Second, we forward our analysis to cointegration test by applying Gregory and Hansen(1996) test which allows for regime shift in the model. To figure out the identification issue, we add the supply factor and demand factor to the specification separately to estimate cointegration equation. Third, we go for VEC model with regime shift as exogenous variable and impulse function to analyze the short run relationship. We find, in general, countries/area that attract more funding/liability have a higher propensity to engage in excessive domestic credit creation. Compared with the effect of net foreign liability to the area excluding euro area on credit creation, the effect power of net position to the euro area is relatively low. While specifically speaking, the effect property is different prior to 2008Q3 and post-2008Q3 because of the crush change of economic environment. Overall, our results suggest our policymakers should focus on regulating cross board bank activities to prevent deteriorating macroeconomic imbalance—the increasing excess amount of domestic private credit. The Field of research: a. Economics---financial economics b. banking ________________________________________________________________________ Affiliation: School of Economics, Utrecht University. Visiting Address: Kriekenpitplein 21-22, 3584 EC Utrecht. Postal address: PO Box 80125, 3508 TC Utrecht, the Netherlands. Email: J.Liu2@uu.nl