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Factors in prominent asset pricing models are positively autocorrelated. We derive a transformation that turns an … autocorrelated factor to a ``time-series efficient'' factor. Time-series efficient factors earn significantly higher Sharpe ratios … than the original factors and contain all the information found in the original factors. Momentum strategies profit from …
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Long-term investors rebalance their portfolios given their views on the investment landscape. Portfolio tilting is often implemented using investors' views on point estimates of asset expected returns which are notoriously difficult to estimate and lead to unstable portfolio weights. We avoid...
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