We show a causal impact of immigration on innovation and dynamism in US counties. To identify the causal impact of … recent decades. We show four main results. First, immigration has a positive impact on innovation, measured by the patenting … impact of immigration on innovation percolates over space, but spatial spillovers quickly die out with distance. Fourth, the …

government provide incentives for innovation in a fiscally sustainable way? We address this question by examining the Ramsey … problem of finding optimal tax and subsidy schemes in a model in which growth is endogenously sustained by risky innovation …. We characterize the shadow value of growth and entry in the innovation sector. We find that a profit tax is required to …

such applications, a key role is played by complementarities in the process of innovation. …

topics: the impact of fiscal policies on growth, the role of innovation and the relationship between uncertainty and growth. …

in industries where technological and organizational innovation is important. Indeed a large literature has grown up on … ways they evolve over time. Another domain concerns the nature of competition in such industries, wherein innovation and … briefly flag some fundamental aspects of economic growth and development as an innovation-driven evolutionary process. …