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Rollover Risk and Market Freezes

Viral Acharya (), Douglas Gale () and Tanju Yorulmazer
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Tanju Yorulmazer: ?

Working Papers from University of Pennsylvania, Wharton School, Weiss Center

Abstract: The crisis of 2007-09 has been characterized by a sudden freeze in the market for short-term, secured borrowing. We present a model that can explain a sudden collapse in the amount that can be borrowed against finitely-lived assets with little credit risk. The borrowing in this model takes the form of a repurchase agreement ("repo") or asset-backed commercial paper that has to be rolled over several times before the underlying assets mature and their true value is revealed. In the event of default, the creditors can seize the collateral. We assume that there is a small cost of liquidating the assets. The debt capacity of the assets (the maximum amount that can be borrowed using the assets as collateral) depends on the information state of the economy. At each date, in general there is either "good news" (the information state improves), "bad news" (the information state gets worse), or "no news" (the information state remains the same). When rollover risk is high, because debt must be rolled over frequently, we show that the debt capacity is lower than the fundamental value of the asset and in extreme cases may be close to zero. This is true even if the fundamental value of the assets is high in all states. Interpreted differently, the model explains why discounts on ABS collateral in overnight repo borrowing (the so-called "haircuts") rose dramatically during the crisis.

JEL-codes: D80 G12 G21 G24 G32 G33 (search for similar items in EconPapers)
Date: 2010-10
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Related works:
Journal Article: Rollover Risk and Market Freezes (2011)
Working Paper: Rollover Risk and Market Freezes (2010) Downloads
Working Paper: Rollover Risk and Market Freezes (2009) Downloads
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