We study the optimal taxation of risk-free and excess capital income with heterogeneous rates of return, alongside an … optimal nonlinear earnings tax. Households can hold three assets: one risk-free, one risky but diversifiable, and one a … private investment with idiosyncratic risk whose expected return differs among households. Contrary to expectations, the …

Empirical measures of world consumption growth risk have failed to rationalize the cross-section of country equity … returns. We propose a new factor, termed "the global consumption factor", to explain the patterns in risk premiums on … from 47 developed and emerging market countries over a four-decade period. Our risk factor reflects changes in the cross …