Abstract:Using firm level panel data from the U.S., the authors explore the relationship between firm size and R&D productivity for two important and R&D-intensive industries: Semiconductors and Pharmaceuticals. They employ two measures of a firm’s R&D performance: the number of citations received per patented innovation, and the number of citations received per dollar of R&D expenditures. The former is a measure of the average quality of a firm’s patents, and the latter is a measure of total R&D ou… Show more
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