This article asks whether household heterogeneity and market incompleteness have quantitatively important implications for the welfare effects of tax changes. We compare a representative-agent economy to an economy in which households face idiosyncratic uninsurable income risk. The income...

The labor-supply elasticity is a central element in many macroeconomic models. We argue that assumptions underlying previous econometric estimates of the intertemporal labor supply elasticity are inconsistent with incomplete markets economies. In particular, if the econometrician ignores...