A Re-Examination of Sharpe's Ratio for Log-Normal Prices
The purpose of this paper is to examine the exact properties of Sharpe's ratio when prices are log-normal. Depending on the definition of returns, different expressions are formed for unbiased estimators of Sharpe's ratio.
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Volume (Year): 12 (2005)
Issue (Month): 1 ()
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- Jobson, J D & Korkie, Bob M, 1981. "Performance Hypothesis Testing with the Sharpe and Treynor Measures," Journal of Finance, American Finance Association, vol. 36(4), pages 889-908, September.
- Knight, John L & Satchell, Stephen E., 1997. "Existence of Unbiased Estimators of the Black/Scholes Option Price, Other Derivatives, and Hedge Ratios," Econometric Theory, Cambridge University Press, vol. 13(06), pages 791-807, December.
- He, Hua & Leland, Hayne, 1993. "On Equilibrium Asset Price Processes," Review of Financial Studies, Society for Financial Studies, vol. 6(3), pages 593-617.
- Miller, Robert E. & Gehr, Adam K., 1978. "Sample Size Bias and Sharpe's Performance Measure: A Note," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 13(05), pages 943-946, December.
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