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Working Paper
Can Leverage Constraints Help Investors?
This paper provides causal evidence that leverage constraints can reduce the underperformance of individual investors. In accordance with Dodd-Frank, the CFTC was given regulatory authority over the retail market for foreign exchange and capped the maximum permissible leverage available to U.S. traders. By comparing U.S. traders on the same brokerages with their unregulated European counterparts, I show that the leverage constraint reduces average per-trade losses even after adjusting for risk. Since this causal approach holds constant contemporaneous market factors, these findings challenge ...
Report
Credit spreads, financial crises, and macroprudential policy
Credit spreads display occasional spikes and are more strongly countercyclical in times of financial stress. Financial crises are extreme cases of this nonlinear behavior, featuring skyrocketing credit spreads, sharp losses in bank equity, and deep recessions. We develop a macroeconomic model with a banking sector in which banks? leverage constraints are occasionally binding and equity issuance is endogenous. The model captures the nonlinearities in the data and produces quantitatively realistic crises. Precautionary equity issuance makes crises infrequent but does not prevent them ...
Working Paper
Banks, Capital Flows and Financial Crises
This paper proposes a macroeconomic model with financial intermediaries (banks), in which banks face occasionally binding leverage constraints and may endogenously affect the strength of their balance sheets by issuing new equity. The model can account for occasional financial crises as a result of the nonlinearity induced by the constraint. Banks' precautionary equity issuance makes financial crises infrequent events occurring along with "regular" business cycle fluctuations. We show that an episode of capital infl ows and rapid credit expansion, triggered by low country interest rates, ...
Discussion Paper
Financial Crises and the Desirability of Macroprudential Policy
The global financial crisis has put financial stability risks?and the potential role of macroprudential policies in addressing them?at the forefront of policy debates. The challenge for macroeconomists is to develop new models that are consistent with the data while being able to capture the highly nonlinear nature of crisis episodes. In this post, we evaluate the impact of a macroprudential policy that has the government tilt incentives for banks to encourage them to build up their equity positions. The government has a role since individual banks do not internalize the systemic benefit of ...