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other hand as a regularization, which shrinks the covariance matrix. As an empirical framework, we propose a flexible … illustrate that transaction cost regularization (even to small extent) is crucial in order to produce allocations with positive …
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for liquid assets by adding uninsured individual risk together with differential costs of trading securities. We then …
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We give a simple explicit formula for turnover reduction when a large number of alphas are traded on the same execution platform and trades are crossed internally. We model turnover reduction via alpha correlations. Then, for a large number of alphas, turnover reduction is related to the largest...
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