We construct a tractable general equilibrium model of cumulative innovation and growth, in which new ideas strictly … lower than the social plannerś benchmark, which suggests a role for patent policy. We focus on a "non-infringing inventive … the rate of innovation, as well as a separate optimal required inventive step that maximizes welfare, with the former …

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 …

We construct a tractable general equilibrium model of cumulative innovation and growth, in which new ideas strictly … lower than the social planner's benchmark, which suggests a role for patent policy. We focus on a “non-infringing inventive … the rate of innovation, as well as a separate optimal required inventive step that maximizes welfare, with the former …