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A Macroeconomic Model with a Financial Sector

Author

Listed:
  • Yuliy Sannikov
  • Markus K. Brunnermeier

    (Princeton University)

Abstract

This paper studies a macroeconomic model in which financial experts borrow from less productive agents in order to invest in financial assets. We pursue three set of results: (i) Going beyond a steady state analysis, we show that adverse shocks cause amplifying price declines not only through the erosion of net worth of the financial sector, but also through increased price volatility, leading to precautionary hoarding and fire sales. (ii) Financial sector’s leverage and maturity mismatch is excessive, since it does not internalize externalities it imposes on the labor sector and other financial experts due to a fire-sale externality. (iii) Securitization, which allows the financial sector to offload some risk, exacerbates the excessive risk-taking.

Suggested Citation

  • Yuliy Sannikov & Markus K. Brunnermeier, 2010. "A Macroeconomic Model with a Financial Sector," 2010 Meeting Papers 1114, Society for Economic Dynamics.
    • Handle: RePEc:red:sed010:1114
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    JEL classification:

    • E13 - Macroeconomics and Monetary Economics - - General Aggregative Models - - - Neoclassical
    • E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
    • E44 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Financial Markets and the Macroeconomy
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • G01 - Financial Economics - - General - - - Financial Crises
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
    • G20 - Financial Economics - - Financial Institutions and Services - - - General

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