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Surprise and default in general equilibrium

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  • Teeple, Keisuke

    (Department of Economics, University of Waterloo)

Abstract

I model an incomplete markets economy where unaware agents do not perceive all states of nature, so unintended default can occur when asset returns differ from what was perceived. The presence of default plays a crucial role in the proof of existence - particularly in economies where beliefs are biased - by removing perceived arbitrage opportunities with respect to delivery-adjusted asset returns. The First Fundamental Welfare Theorem fails because of default and pecuniary inefficiencies, but the Second Fundamental Welfare Theorem holds for economies with no aggregate risk. Welfare is shown to not necessarily be monotonic in discovery, or the increasing of awareness.

Suggested Citation

  • Teeple, Keisuke, 2023. "Surprise and default in general equilibrium," Theoretical Economics, Econometric Society, vol. 18(4), November.
    • Handle: RePEc:the:publsh:4943
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    References listed on IDEAS

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    More about this item

    Keywords

    General equilibrium; incomplete markets; default; unawareness;
    All these keywords.

    JEL classification:

    • D52 - Microeconomics - - General Equilibrium and Disequilibrium - - - Incomplete Markets
    • D53 - Microeconomics - - General Equilibrium and Disequilibrium - - - Financial Markets
    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness
    • G18 - Financial Economics - - General Financial Markets - - - Government Policy and Regulation

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