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A Ratio Criterion for Signing the Effects of an Increase in Uncertainty

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  • Black, Jane M
  • Bulkley, I George

Abstract

A decisionmaker wishes to pick b to maximize E[u(z(x,b))] where x is a random variable. A shift in the probability density function of x from f(x) to g(x) is considered where g(x) can be interpreted as representing greater uncertainty. A set of conditions on the behavior of the ratio of f(x) to g(x) over the support of x are derived sufficient to sign the effect of the shift on the decision variable. Copyright 1989 by Economics Department of the University of Pennsylvania and the Osaka University Institute of Social and Economic Research Association.

Suggested Citation

  • Black, Jane M & Bulkley, I George, 1989. "A Ratio Criterion for Signing the Effects of an Increase in Uncertainty," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 30(1), pages 119-130, February.
    • Handle: RePEc:ier:iecrev:v:30:y:1989:i:1:p:119-30
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    Cited by:

    1. Louis Eeckhoudt & Liqun Liu & Jack Meyer, 2017. "Restricted increases in risk aversion and their application," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 64(1), pages 161-181, June.
    2. Hau, Arthur, 2006. "Production under uncertainty with insurance or hedging," Insurance: Mathematics and Economics, Elsevier, vol. 38(2), pages 347-359, April.
    3. Gollier, Christian & Schlesinger, Harris, 2002. "Changes in risk and asset prices," Journal of Monetary Economics, Elsevier, vol. 49(4), pages 747-760, May.
    4. Dionne, Georges & Harrington, Scott, 2017. "Insurance and Insurance Markets," Working Papers 17-2, HEC Montreal, Canada Research Chair in Risk Management.
    5. Hennessy, David A., 1993. "Applications of contingent claims theory to microeconomic problems," ISU General Staff Papers 1993010108000011822, Iowa State University, Department of Economics.
    6. Burton Hollifield & Alan Kraus, 2009. "Defining Bad News: Changes in Return Distributions That Decrease Risky Asset Demand," Management Science, INFORMS, vol. 55(7), pages 1227-1236, July.
    7. Choi, Gyemyung & Kim, Iltae & Snow, Arthur, 2000. "Comparative statics predictions for the cross-effects of central dominance changes in risk with quasilinear payoffs," Economics Letters, Elsevier, vol. 66(1), pages 41-48, January.
    8. Christian Gollier & Miles S. Kimball, 2018. "New methods in the classical economics of uncertainty: comparing risks," The Geneva Papers on Risk and Insurance Theory, Springer;International Association for the Study of Insurance Economics (The Geneva Association), vol. 43(1), pages 5-23, May.
    9. Tzeng, Larry Y. & Wang, Jen-Hung, 2004. "Increase in risk and saving behavior," Journal of Economics and Business, Elsevier, vol. 56(5), pages 405-414.
    10. Chuang, O-Chia & Kuan, Chung-Ming & Tzeng, Larry Y., 2017. "Testing for central dominance: Method and application," Journal of Econometrics, Elsevier, vol. 196(2), pages 368-378.
    11. Gollier, Christian & Schlesinger, Harris, 1996. "Portfolio choice under noisy asset returns," Economics Letters, Elsevier, vol. 53(1), pages 47-51, October.
    12. Iltae Kim & Suyeol Ryu, 2006. "The Comparative Statics for Linear Payoffs and Increases in Risk," Korean Economic Review, Korean Economic Association, vol. 22, pages 437-459.

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