Trade and growth theories predict a mutual causation of innovation and exports. We test empirically whether innovation causes exports using a uniquely rich German micro dataset. To overcome the potential endogeneity, we need to identify variations in innovations that are exogenous to export...

Most existing theories of the firms define a firm as a collection of physical assets, and hence can not explain the firm from a human-asset perspective, which is of particular importance for understanding human-capital intensive firms. To fill in the gap, this paper proposes an alternative...

In this paper, I study the welfare properties of growth models with endogenous innovation, knowledge externalities, and monopoly pricing of new goods. Since useful policy prescriptions cannot be inferred from a balanced growth analysis, welfare is analyzed for transition paths. I provide a...