We measure the welfare gain from removing aggregate consumption fluctuations in a model where each individual faces incomplete consumption insurance. We show that, because this welfare gain is a convex function of the overall consumption risk—aggregate plus idiosyncratic—each individual...

Previous literature has recognized the importance of regime changes in the calculation of ex-ante equity premia. However, the methodologies used to estimate equity premia only allow for very restrictive forms of regime transitions. This paper addresses the issue by postulating an evolving model...