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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.

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Bibliographic Info

Article provided by Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association in its journal International Economic Review.

Volume (Year): 30 (1989)
Issue (Month): 1 (February)
Pages: 119-30

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Handle: RePEc:ier:iecrev:v:30:y:1989:i:1:p:119-30

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Cited by:
  1. 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.
  2. Gollier, Christian, 2009. "Portfolio Choices and Asset Prices: The Comparative Statics of Ambiguity Aversion," IDEI Working Papers 357, Institut d'Économie Industrielle (IDEI), Toulouse, revised 2011.
  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. Hau, Arthur, 2006. "Production under uncertainty with insurance or hedging," Insurance: Mathematics and Economics, Elsevier, vol. 38(2), pages 347-359, April.
  5. 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.
  6. Gollier, Christian & Schlesinger, Harris, 1996. "Portfolio choice under noisy asset returns," Economics Letters, Elsevier, vol. 53(1), pages 47-51, October.

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