innovation can be systematically distorted. This paper builds a simple model of endogenous technology, which generalizes existing … comparative static results and characterizes potential distortions in the direction of innovation. I show that empirical findings …

linked fields. Our analysis uses 1.8 million U.S. patents and their citation properties to map the innovation network and its … strength. Past innovation network structures are calculated using citation patterns across technology classes during 1975 … predictive power on future innovation after 1995. This pattern is consistent with the idea that when there is more past upstream …