Stephen J. Brown () (NYU Stern School of Business) William N. Goetzmann () (Yale School of Management, International Center for Finance) Mark Grinblatt () (University of California, Los Angeles - Finance Area)
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We use an iterative relocation algorithm to identify factors in common stock returns. The benefit of the approach is that factors are portfolios of assets with non-negative weights. As a result, they are readily interpretable in terms of the characteristics of the underlying securities. The positive portfolio factors have comparatively high explanatory power in sample and out of sample. We find evidence of a size factor and factors identified with certain industries. Factors extracted from the mutual fund universe perform marginally better than factors from the universe of equities.
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Stephen J. Brown & William N. Goetzmann & Mark Grinblatt, 1998.
"Positive Portfolio Factors,"
NBER Working Papers
6412, National Bureau of Economic Research, Inc.
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