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Title: A quantitative analysis of the countercyclical capital buffer Authors:  Miguel Faria-e-Castro - Federal Reserve Bank of St. Louis (United States) [presenting]
Abstract: The quantitative macroeconomic effects of the countercyclical capital buffer (CCyB) are studied in a nonlinear DSGE model with occasional financial crises, which is calibrated and combined with US data to estimate sequences of structural shocks. Raising capital buffers during leverage expansions can reduce the frequency of crises by more than half. A quantitative application to the 2007-08 financial crisis shows that the CCyB in the 2.5\% range (as in the Federal Reserve's current framework) could have greatly mitigated the financial panic of 2008, for a cumulative gain of 29\% in aggregate consumption. The threat of raising capital requirements is effective even if this tool is not used in equilibrium.