NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Magnus Dahlquist

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Sweden
Tel: +4676962312

E-Mail: magnus.dahlquist@hhs.se

NBER Working Papers and Publications

October 2004Dynamic Trading Strategies and Portfolio Choice
with Ravi Bansal, Campbell R. Harvey: w10820
Traditional mean-variance efficient portfolios do not capture the potential wealth creation opportunities provided by predictability of asset returns. We propose a simple method for constructing optimally managed portfolios that exploits the possibility that asset returns are predictable. We implement these portfolios in both single and multi-period horizon settings. We compare alternative portfolio strategies which include both buy-and-hold and fixed weight portfolios. We find that managed portfolios can significantly improve the mean-variance trade-off, in particular, for investors with investment horizons of three to five years. Also, in contrast to popular advice, we show that the buy-and-hold strategy should be avoided.
 
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