A Model of Capital and Crises
We develop a model in which the capital of the intermediary sector plays a critical role in determining asset prices. The model is cast within a dynamic general equilibrium economy, and the role for intermediation is derived endogenously based on optimal contracting considerations. Low intermediary capital reduces the risk-bearing capacity of the marginal investor. We show how this force helps to explain patterns during financial crises. The model replicates the observed rise during crises in Sharpe ratios, conditional volatility, correlation in price movements of assets held by the intermediary sector, and fall in riskless interest rates.
This paper was revised on December 5, 2011
Document Object Identifier (DOI): 10.3386/w14366
Published: A Model of Capital and Crises, 2012, with Arvind Krishnamurthy, Review of Economic Studies 79(2): pp. 735-777. Presentation Slides.
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