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Optimal hedge ratio and elasticity of risk aversion


  • Udo Broll

    () (Department of Economics, Dresden University of Technology)

  • Jack E. Wahl

    () (Department of Finance, University of Dortmund)


We apply the mean-standard deviation paradigm to examine a widely used model of the hedging literature. As the hedging model satisfies a scale and location condition the mean-standard deviation technique provides more intuition for the revision of the firm's optimum risk taking when price volatility changes. By introducing risk aversion elasticity we describe the interaction of price risk and optimum hedge. We show that with unit risk aversion elasticity optimum hedge ratio is invariant to changes in price volatilities.

Suggested Citation

  • Udo Broll & Jack E. Wahl, 2004. "Optimal hedge ratio and elasticity of risk aversion," Economics Bulletin, AccessEcon, vol. 6(5), pages 1-7.
  • Handle: RePEc:ebl:ecbull:eb-03f30006

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    References listed on IDEAS

    1. Wong, Kit Pong, 1996. "Background Risk and the Theory of the Competitive Firm under Uncertainty," Bulletin of Economic Research, Wiley Blackwell, vol. 48(3), pages 241-251, July.
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    7. Briys, Eric & Crouhy, Michel & Schlesinger, Harris, 1993. "Optimal hedging in a futures market with background noise and basis risk," European Economic Review, Elsevier, vol. 37(5), pages 949-960, June.
    8. Kimball, Miles S, 1993. "Standard Risk Aversion," Econometrica, Econometric Society, vol. 61(3), pages 589-611, May.
    9. Ormiston, Michael B & Schlee, Edward E, 2001. "Mean-Variance Preferences and Investor Behaviour," Economic Journal, Royal Economic Society, vol. 111(474), pages 849-861, October.
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    elasticity of risk aversion;

    JEL classification:

    • F3 - International Economics - - International Finance
    • D2 - Microeconomics - - Production and Organizations


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