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A Model to Analyse Financial Fragility

Charles A.E. Goodhart, Pojanart Sunirand and Dimitrios Tsomocos

OFRC Working Papers Series from Oxford Financial Research Centre

Abstract: This paper sets out a tractable model which illuminates problems relating to individual bank behaviour, to possible contagious inter-relationships between banks, and to the appropriate design of prudential requirements and incentives to limit `excessive' risk-taking. Our model is rich enough to include heterogeneous agents, endogenous default, and multiple commodity, and credit and deposit markets. Yet, it is simple enough to be effectively computable and can therefore be used as a practical framework to analyse financial fragility. Financial fragility in our model emerges naturally as an equilibrium phenomenon. Among other results, a non-trivial quantity theory of money is derived, liquidity and default premia co-determine interest rates, and both regulatory and monetary policies have non-neutral effects. The model also indicates how monetary policy may affect financial fragility, thus highlighting the trade-off between financial stability and economic efficiency.

Date: 2003
New Economics Papers: this item is included in nep-fin, nep-mfd, nep-mon and nep-rmg
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Journal Article: A model to analyse financial fragility (2006) Downloads
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