Market Demand, Technological Opportunity and Research Spillovers on R&D Intensity and Productivity Growth
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This paper uses sales and patent distribution data to establish the market and technological "positions" of firms. A notion of technological proximity of firms is developed in order to quantify potential R&D spillovers. The importance of the position variables and the potential spilover pool in
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美国国家经济研究局创建时间：
1984-08-01
