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Firm Density and Industry R & D Intensity: Theory and Evidence

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Abstract

By deriving a formal model of industry R & D that identifies factors influencing industry R & D intensity, this paper first suggests firm density, defined as the inverse of average firm sales or simply the number of firms divided by industry sales, as a measure of market structure that is appropriate in explaining industry R & D intensity. The model shows that the cost structure of R & D, consumer preference over quality and price, the appropriability of R & D, firm density, and the average level of firm R & D intensity jointly determine industry R & D intensity. In particular, firm density has a positive relationship with industry R & D intensity, implying that firms in higher firm-density industries feel fiercer competitive pressure and thus engage more intensively in R & D. An empirical analysis of panel data on industry R & D activities of Korean manufacturing industries during the period 1991–1996 provides supportive evidence for the predictions of the model including the positive relationship between firm density and industry R & D intensity. The theoretical model and the empirical results are also consistent with the recent survey of U.S. corporate R & D activities by the U.S. Department of Commerce and the National Science Foundation (1999).

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Authors and Affiliations

  1. Graduate School of Management, KAIST (Korea Advanced Institute of Science and Technology), 207-43 Cheongryangri, Dongdaemun, Seoul, 130-868, Korea

    Chang-Yang Lee

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Lee, CY. Firm Density and Industry R & D Intensity: Theory and Evidence. Review of Industrial Organization 22, 139–158 (2003). https://doi.org/10.1023/A:1022965830769

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