Least Squares Predictions and Mean-Variance Analysis

Enrique Sentana

No 2088, CEPR Discussion Papers from C.E.P.R. Discussion Papers

Abstract: We compare the Sharpe ratios of investment funds which combine one riskless and one risky asset following: i) timing strategies which forecast excess returns using simple regressions; ii) a strategy which uses multiple regression instead; and iii) a passive allocation which combines the funds in i) with constant weightings. We show that iii) dominates i) and ii), as it implicitly uses the linear forecasting rule that maximises the Sharpe ratio of actively traded portfolios, but the relative ranking of i) and ii) is generally unclear. We also discuss under what circumstances the performance of ii) and iii) coincides.

Keywords: Forecasting; Market timing strategies; Portfolio Allocation; Sharpe Ratios (search for similar items in EconPapers)
JEL-codes: G11 (search for similar items in EconPapers)
Date: 1999-02
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Citations: View citations in EconPapers (1)

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Related works:
Journal Article: Least Squares Predictions and Mean-Variance Analysis (2005)
Working Paper: Least Squares Predictions and Mean-Variance Analysis (1999)
Working Paper: Least Squares Predictions and Mean-Variance Analysis (1997)
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