In a second-best optimal growth setup with only factor taxes, it is in general optimal to fully replace capital by labor income taxation in the long run. We revisit this important issue by developing a human capital-based endogenous growth model with frictional labor search, allowing each firm...

How large are the welfare gains from trade? Would such gains be significantly amplified in the long run when productivity is endogenously enhanced? To address these questions, we focus on the dynamic effect of trade, in particular, how trade affects the incentives for technological advancement....