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Heterogeneity of Investors and Asset Pricing in a Risk-Value World

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  • Franke, Günter
  • Weber, Martin

Abstract

Portfolio choice and the implied asset pricing are usually derived assuming maximization of expected utility. In this Paper, they are derived from risk-value models that generalize the Markowitz-model. We use a behaviourally based risk measure with an endogenous or exogenous benchmark. If the risk measure is modelled by a negative HARA-function, then sharing rules are convex or concave relative to each other. A measure of heterogeneity of investors is derived. More heterogeneity (a) raises convexity/concavity of sharing rules and, thus, the need of investors to trade options, (b) increases convexity of the pricing kernel, (c) raises option prices relative to the price of the under-lying asset and (d) raises the variance and kurtosis of the risk-neutral probability distribution of the aggregate pay-off.

Suggested Citation

  • Franke, Günter & Weber, Martin, 2003. "Heterogeneity of Investors and Asset Pricing in a Risk-Value World," CEPR Discussion Papers 3832, C.E.P.R. Discussion Papers.
  • Handle: RePEc:cpr:ceprdp:3832
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    References listed on IDEAS

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    Cited by:

    1. Markus Glaser & Martin Weber, 2003. "Momentum and Turnover: Evidence from the German Stock Market," Schmalenbach Business Review (sbr), LMU Munich School of Management, vol. 55(2), pages 108-135, April.
    2. Sohnke M. Bartram & Frank R. Fehle, 2003. "Competition among Alternative Option Market Structures: Evidence from Eurex vs. Euwax," Finance 0307005, EconWPA, revised 06 Nov 2003.
    3. Lüders, Erik, 2002. "Asset Prices and Alternative Characterizations of the Pricing Kernel," ZEW Discussion Papers 02-10, ZEW - Zentrum für Europäische Wirtschaftsforschung / Center for European Economic Research.
    4. Sohnke M. Bartram & Frank R. Fehle, 2003. "Alternative Market Structures for Derivatives," Finance 0311007, EconWPA, revised 12 Dec 2003.

    More about this item

    Keywords

    asset pricing; convexity of pricing kernal; decision-making under risk; heterogeneity of investors;

    JEL classification:

    • D81 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Criteria for Decision-Making under Risk and Uncertainty
    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
    • G13 - Financial Economics - - General Financial Markets - - - Contingent Pricing; Futures Pricing

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