, the forces of innovation and diffusion combine to shape trade substitution patterns. Innovation makes a country … technological similarity and increases head-to-head competition. In the special case of an innovation-only model where countries do … observable trade flows and the dynamics of innovation and knowledge diffusion …

We study the optimal allocation of R&D resources in an endogenous growth model with an innovation network, through … more R&D toward key sectors that are upstream in the innovation network. Second, we extend to an open-economy setting and … spillovers has less incentive to direct resources toward innovation-upstream sectors, leading to cross-country differences in …

major changes in the American innovation ecosystem over the past century. The past three decades have been marked by a …