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Collateral equilibrium, I: a basic framework

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  • John Geanakoplos
  • William Zame

Abstract

Much of the lending in modern economies is secured by some form of collateral: residential and commercial mortgages and corporate bonds are familiar examples. This paper builds an extension of general equilibrium theory that incorporates durable goods, collateralized securities, and the possibility of default to argue that the reliance on collateral to secure loans and the particular collateral requirements chosen by the social planner or by the market have a profound impact on prices, allocations, market structure, and the efficiency of market outcomes. These findings provide insights into housing and mortgage markets, including the subprime mortgage market. Copyright Springer-Verlag Berlin Heidelberg 2014

Suggested Citation

  • John Geanakoplos & William Zame, 2014. "Collateral equilibrium, I: a basic framework," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 56(3), pages 443-492, August.
  • Handle: RePEc:spr:joecth:v:56:y:2014:i:3:p:443-492
    DOI: 10.1007/s00199-013-0797-4
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    More about this item

    Keywords

    Collateral; Default; GEI; D5;
    All these keywords.

    JEL classification:

    • C5 - Mathematical and Quantitative Methods - - Econometric Modeling

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