Standard asset pricing models have difficulty explaining cross-sectional differences in observed equity risk premia of developed and emerging markets. We argue that national equity returns are subject to sample selectivity. The lack of credible commitment to keep capital markets open (risk of...

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...