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Segregated Security Exchanges with Ex Ante Rights to Trade: A Market-Based Solution to Collateral-Constrained Externalities

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  • Weerachart Kilenthong
  • Robert Townsend

Abstract

This paper studies a competitive general equilibrium model with default and endogenous collateralized contracts. The possibility of trade in spot markets creates externalities, as spot prices and the bindingness of collateral constraints interact. We propose a market based solution which overcomes the externalities problem and obviates the needs for any government policy intervention. If agents are allowed to contract ex ante on market fundamentals determining the state-contingent spot prices used to unwind collateral, over and above contracting on true underlying states of the world, then standard existence and welfare theorems apply, that is, competitive equilibria are equivalent with Pareto optima.

Suggested Citation

  • Weerachart Kilenthong & Robert Townsend, 2014. "Segregated Security Exchanges with Ex Ante Rights to Trade: A Market-Based Solution to Collateral-Constrained Externalities," NBER Working Papers 20086, National Bureau of Economic Research, Inc.
    • Handle: RePEc:nbr:nberwo:20086
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    References listed on IDEAS

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    Cited by:

    1. Ana Fostel & John Geanakoplos, 2013. "Financial Innovation, Collateral and Investment," Cowles Foundation Discussion Papers 1903R, Cowles Foundation for Research in Economics, Yale University, revised Mar 2015.
    2. Grochulski, Borys, 2013. "Pecuniary Externalities, Segregated Exchanges, and Market Liquidity in a Diamond-Dybvig Economy with Retrade," Economic Quarterly, Federal Reserve Bank of Richmond, issue 4Q, pages 305-340.
    3. Eduardo Dávila & Anton Korinek, 2016. "Pecuniary Externalities in Economies with Financial Frictions," NBER Working Papers 22444, National Bureau of Economic Research, Inc.
    4. Ana Fostel & John Geanakoplos, 2016. "Financial Innovation, Collateral, and Investment," American Economic Journal: Macroeconomics, American Economic Association, vol. 8(1), pages 242-284, January.

    More about this item

    JEL classification:

    • D52 - Microeconomics - - General Equilibrium and Disequilibrium - - - Incomplete Markets
    • D53 - Microeconomics - - General Equilibrium and Disequilibrium - - - Financial Markets
    • D61 - Microeconomics - - Welfare Economics - - - Allocative Efficiency; Cost-Benefit Analysis
    • D62 - Microeconomics - - Welfare Economics - - - Externalities

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