Talk:Roll's critique
Latest comment: 15 years ago by 216.80.105.195 in topic Implicit in Sharpe's paper
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Implicit in Sharpe's paper edit
Is it me or is mean-variance tautology implicit in the mathematical argument used in Sharpe's paper? — Preceding unsigned comment added by 216.80.105.195 (talk) 06:14, 8 October 2008 (UTC)