This paper addresses the problem of portfolio selection under a multifactor asset return model, using Bayesian analysis to deal with uncertainties in parameter estimation and model specification. These sources of error are ignored in the classical mean-variance method. We apply two approaches:...

This study uses factor analysis to simplify the complex relationships among stock markets and to reduce the number of markets required for portfolio construction. Our sample consists of the US and 11 Asia-Pacific stock markets. We find that the reduced portfolio obtained from factor analysis has...