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 …-1994. The interaction of this pre-existing network structure with patent growth in upstream technology fields has strong …

innovation. We evaluate this argument in a dynamic stochastic model of a patent race. The result generally supports the …

inputs to and outputs of government intramural technological innovation. We measure innovative effort and results by … other disciplines. We discuss the implications of our findings for both public- and private-sector innovation efforts and …

between imitation and innovation. Using US patent data for the period 1977-2005, we find that there are inverted U …-shaped relationships between the degree of industry-level technological imitation and industry-level innovation activities and between the … degree of industry-level technological imitation and the value of firm-level innovation. Our results suggest that positive …

Mergers lead to larger firms and a less competitive market structure, but their effects on innovation are not clear …. Mergers may improve innovation incentives by promoting economies of scope and scale, R\&D activities, and increasing the … ability to deal with uncertainties. However, mergers may also discourage innovation by reducing competition, increasing costs …

The impact of innovation on mergers has been a subject of debate in merger enforcements. Firms may decide to merge … because of increasing market share and expanding capacity. However, mergers may also be motivated by innovation since they … provide resources for commercialization of innovation and allow for capturing knowledge spillovers. There are myriad studies …