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Information-constrained optima with retrading: An externality and its market-based solution

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  • Kilenthong, Weerachart T.
  • Townsend, Robert M.

Abstract

This paper studies the efficiency of competitive equilibria in environments with a moral hazard problem and unobserved states, both with retrading in ex post spot markets. The interaction between private information problems and the possibility of retrade creates an externality, unless preferences have special, restrictive properties. The externality is internalized by allowing agents to contract ex ante on market fundamentals determining the spot price or interest rate, over and above contracting on actions and outputs. Then competitive equilibria are equivalent with the appropriate notion of constrained Pareto optimality. Examples show that it is possible to have multiple market fundamentals or price-islands, created endogenously in equilibrium.

Suggested Citation

  • Kilenthong, Weerachart T. & Townsend, Robert M., 2011. "Information-constrained optima with retrading: An externality and its market-based solution," Journal of Economic Theory, Elsevier, vol. 146(3), pages 1042-1077, May.
    • Handle: RePEc:eee:jetheo:v:146:y:2011:i:3:p:1042-1077
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    Cited by:

    1. Weerachart T. Kilenthong & Robert M. Townsend, 2014. "A Market Based Solution to Price Externalities: A Generalized Framework," NBER Working Papers 20275, National Bureau of Economic Research, Inc.
    2. 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.
    3. Alessandro Fedele & Luca Panaccione, 2020. "Moral hazard and compensation packages: does reshuffling matter?," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 70(1), pages 223-241, July.
    4. Borys Grochulski & Yuzhe Zhang, 2019. "Optimal liquidity policy with shadow banking," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 68(4), pages 967-1015, November.
    5. A. Citanna & P. Siconolfi, 2016. "Designing insurance markets with moral hazard and nonexclusive contracts," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 62(1), pages 325-360, June.
    6. Weerachart T. Kilenthong & Robert M. Townsend, 2021. "A Market-Based Solution for Fire Sales and Other Pecuniary Externalities," Journal of Political Economy, University of Chicago Press, vol. 129(4), pages 981-1010.
    7. Weerachart T. Kilenthong & Robert M. Townsend, 2021. "A Market-Based Solution for Fire Sales and Other Pecuniary Externalities," Journal of Political Economy, University of Chicago Press, vol. 129(4), pages 981-1010.
    8. Corbae, Dean & Marimon, Ramon, 2011. "Introduction to Incompleteness and Uncertainty in Economics," Journal of Economic Theory, Elsevier, vol. 146(3), pages 775-784, May.
    9. Borys Grochulski, 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.
    10. di Iasio, Giovanni & Kryczka, Dominika, 2021. "Market failures in market-based finance," Working Paper Series 2545, European Central Bank.
    11. Park, Jaevin, 2023. "Rights to retrade, free-riding and insurance requirement," Economics Letters, Elsevier, vol. 225(C).
    12. Alessandro Fedele & Luca Panaccione, 2015. "Pay package reshuffling and managerial incentives: A principal-agent analysis," BEMPS - Bozen Economics & Management Paper Series BEMPS28, Faculty of Economics and Management at the Free University of Bozen.
    13. Alex Citanna & Paolo Siconolfi, 2020. "Constrained Efficient Markets For Manipulation Economies," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 61(4), pages 1531-1567, November.

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    More about this item

    Keywords

    Externalities Private information Moral hazard Retrading Walrasian equilibrium Constrained efficiency Decentralization;

    JEL classification:

    • D62 - Microeconomics - - Welfare Economics - - - Externalities
    • D61 - Microeconomics - - Welfare Economics - - - Allocative Efficiency; Cost-Benefit Analysis
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
    • D51 - Microeconomics - - General Equilibrium and Disequilibrium - - - Exchange and Production Economies

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