A Model of Shadow Banking

56 Pages Posted: 12 Jun 2011

See all articles by Nicola Gennaioli

Nicola Gennaioli

Bocconi University - Department of Finance; Bocconi University - IGIER - Innocenzo Gasparini Institute for Economic Research

Andrei Shleifer

Harvard University - Department of Economics; National Bureau of Economic Research (NBER); European Corporate Governance Institute (ECGI)

Robert W. Vishny

University of Chicago - Booth School of Business; National Bureau of Economic Research (NBER)

Multiple version iconThere are 3 versions of this paper

Date Written: June 2011

Abstract

We present a model of shadow banking in which financial intermediaries originate and trade loans, assemble these loans into diversified portfolios, and then finance these portfolios externally with riskless debt. In this model: i) outside investor wealth drives the demand for riskless debt and indirectly for securitization, ii) intermediary assets and leverage move together as in Adrian and Shin (2010), and iii) intermediaries increase their exposure to systematic risk as they reduce their idiosyncratic risk through diversification, as in Acharya, Schnabl, and Suarez (2010). Under rational expectations, the shadow banking system is stable and improves welfare. When investors and intermediaries neglect tail risks, however, the expansion of risky lending and the concentration of risks in the intermediaries create financial fragility and fluctuations in liquidity over time.

Suggested Citation

Gennaioli, Nicola and Shleifer, Andrei and Vishny, Robert W., A Model of Shadow Banking (June 2011). NBER Working Paper No. w17115, Available at SSRN: https://ssrn.com/abstract=1861856

Nicola Gennaioli (Contact Author)

Bocconi University - Department of Finance ( email )

Via Roentgen 1
Milano, MI 20136
Italy

Bocconi University - IGIER - Innocenzo Gasparini Institute for Economic Research ( email )

Via Roentgen 1
Milan, 20136
Italy

Andrei Shleifer

Harvard University - Department of Economics ( email )

Littauer Center
Cambridge, MA 02138
United States
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617-496-1708 (Fax)

HOME PAGE: http://www.economics.harvard.edu/~ashleife/

National Bureau of Economic Research (NBER)

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European Corporate Governance Institute (ECGI)

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Robert W. Vishny

University of Chicago - Booth School of Business ( email )

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Chicago, IL 60637
United States
312-702-2522 (Phone)
312-702-0118 (Fax)

National Bureau of Economic Research (NBER)

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United States

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