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 …

change and innovation has radically changed the living standards of the citizens of the US in the past 150 years. Lying … the presence of post offices in a county, on innovation. We show that between 1804 and 1899, the time when the US became …

innovations—innovations that break new ground in terms of knowledge creation. After presenting a motivating model focusing on the … choice between incremental and radical innovation, and on how managers of different ages and human capital are sorted across … consistent with this pattern. Our measures of creative innovations proxy for innovation quality (average number of citations per …

This paper studies a simple model of experimentation and innovation. Our analysis suggests that patents may improve the … allocation of resources by encouraging rapid experimentation and efficient ex post transfer of knowledge across firms. Each firm … project to implement. A successful innovation can be copied by other firms. Symmetric equilibria (where actions do not depend …

innovations-innovations that break new ground in terms of knowledge creation. After presenting a motivating model focusing on the … choice between incremental and radical innovation, and on how managers of different ages and human capital are sorted across … measures of creative innovations proxy for innovation quality (average number of citations per patent) and creativity (fraction …