Monetary Policy, Bank Leverage, and Financial Stability

Author/Editor:

Fabian Valencia

Publication Date:

October 1, 2011

Electronic Access:

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Disclaimer: This Working Paper should not be reported as representing the views of the IMF.The views expressed in this Working Paper are those of the author(s) and do not necessarily represent those of the IMF or IMF policy. Working Papers describe research in progress by the author(s) and are published to elicit comments and to further debate

Summary:

This paper develops a model to assess how monetary policy rates affect bank risk-taking. In the model, a reduction in the risk-free rate increases lending profitability by reducing funding costs and increasing the surplus the monopolistic bank extracts from borrowers. Under limited liability, this increased profitability affects only upside returns, inducing the bank to take excessive leverage and hence risk. Excessive risk-taking increases as the interest rate decreases. At a broader level, the model illustrates how a benign macroeconomic environment can lead to excessive risk-taking, and thus it highlights a role for macroprudential regulation.

Series:

Working Paper No. 11/244

Subject:

English

Publication Date:

October 1, 2011

ISBN/ISSN:

9781463923235/1018-5941

Stock No:

WPIEA2011244

Format:

Paper

Pages:

37

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