作者：Adams, JD; Jaffe, AB
作者单位：Brandeis University; National Bureau of Economic Research
摘要：We find that the effects of parent firm R&D on plant-level productivity are diminished by both the geographic and technological distance between the research lab and the plants; that productivity appears to depend on R&D per plant rather than the total amount; and that spillovers from technologically related firms are significant but also depend on R&D intensity rather than total industry R&D. These results suggest that the ''dilution'' of R&D across multiple target plants reduces its potency ...
作者：Bagwell, K; Ramey, G
作者单位：University of California System; University of California San Diego
摘要：When avoidable fixed costs are introduced into the entry model of Dixit (1980) and Ware (1984), there arises a coordination problem in selecting among postentry Nash equilibria. Elimination of weakly dominated strategies allows the entrant to use a market-capturing strategy, consisting of a large capacity commitment that selects the entrant's preferred postentry equilibrium and drives the incumbent from the market. Deterring the entrant's market-capturing strategy typically requires the incumb...
