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A class of tractable incomplete-market models for studying asset returns and risk exposure

Author

Listed:
  • François Le Grand

    (EM - EMLyon Business School)

  • Xavier Ragot
Abstract
We present a class of tractable incomplete-market models, where agents face both aggregate risk and limited participation in financial markets. Tractability relies on the assumptions of small asset volumes and of a period utility function that is linear beyond a threshold, in line with Fishburn's (1977) contribution in decision theory. We prove the existence of an equilibrium and derive theoretical results regarding asset prices and consumption choices. This small-trade model is able to reproduce a low safe return and a high equity premium, together with a realistic representation of household exposure to both idiosyncratic and aggregate risks.

Suggested Citation

  • François Le Grand & Xavier Ragot, 2018. "A class of tractable incomplete-market models for studying asset returns and risk exposure," Post-Print hal-02312121, HAL.
    • Handle: RePEc:hal:journl:hal-02312121
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    More about this item

    Keywords

    Incomplete markets; Risk sharing; Consumption inequalities;
    All these keywords.

    JEL classification:

    • E21 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Consumption; Saving; Wealth
    • E44 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Financial Markets and the Macroeconomy
    • D91 - Microeconomics - - Micro-Based Behavioral Economics - - - Role and Effects of Psychological, Emotional, Social, and Cognitive Factors on Decision Making
    • D31 - Microeconomics - - Distribution - - - Personal Income and Wealth Distribution

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