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We use a subsample bootstrap method to get a consistent estimate of the asymptotically optimal choice of the samplefraction, in the sense of minimal mean squared error, which is needed for tail index estimation. Unlike previous methodsour procedure is fully self contained. In particular, the...
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approach introduced by Michaud (1998), resampling efficiency. Michaud argues that the limitations of MV efficiency in practice … that leads to new procedures that can reduce estimation risk. Resampling efficiency has been contrasted to standard … fill this gap. Optimal portfolios based on the Bayes/Stein estimator and resampling efficiency are compared in an empirical …
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