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Dynamic market participation and endogenous information aggregation

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  • Yu, Edison G.

Abstract

This paper studies information aggregation in financial markets with recurrent investor exit and entry. I consider a dynamic general equilibrium model of asset trading with private information and collateral constraints. Investors differ in their aversion to Knightian uncertainty: When uncertainty is high, some investors exit the market. Since exiting investors' information is not fully revealed by prices, conditional return volatility and risk premia both increase. The model also implies that exit is more likely when wealth is more concentrated in the hands of less uncertainty-averse investors. The model thus predicts less informative prices toward the end of a long boom. Moreover, economies with looser collateral constraints should see more volatility due to exit and partial revelation. Higher capital requirements potentially improve welfare by inducing more information revelation by prices.

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  • Yu, Edison G., 2018. "Dynamic market participation and endogenous information aggregation," Journal of Economic Theory, Elsevier, vol. 175(C), pages 491-517.
  • Handle: RePEc:eee:jetheo:v:175:y:2018:i:c:p:491-517
    DOI: 10.1016/j.jet.2018.02.002
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    Cited by:

    1. DiMaggio, Marco & Kermani, Amir & Ramcharan, Rodney & Yu, Edison, 2017. "Household Credit and Local Economic Uncertainty," Working Papers 17-21, Federal Reserve Bank of Philadelphia.

    More about this item

    JEL classification:

    • D81 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Criteria for Decision-Making under Risk and Uncertainty
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness
    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading

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