NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH
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Financial Cycles with Heterogeneous Intermediaries

Nuno Coimbra, Hélène Rey

NBER Working Paper No. 23245
Issued in March 2017
NBER Program(s):Asset Pricing, Economic Fluctuations and Growth, International Finance and Macroeconomics

This paper develops a dynamic macroeconomic model with heterogeneous financial intermediaries and endogenous entry. It features time-varying endogenous macroeconomic risk that arises from the risk-shifting behaviour of financial intermediaries combined with entry and exit. We show that when interest rates are high, a decrease in interest rates stimulates investment and increases financial stability. In contrast, when interest rates are low, further stimulus can increase systemic risk and induce a fall in the risk premium through increased risk-shifting. In this case, the monetary authority faces a trade-off between stimulating the economy and financial stability.

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Document Object Identifier (DOI): 10.3386/w23245

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