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首页> 外文期刊>Economics of innovation and new technology >The relationship between R&D concentration and industry R&D intensity: a simple model and some evidence
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The relationship between R&D concentration and industry R&D intensity: a simple model and some evidence

机译：研发集中度与行业研发强度之间的关系：一个简单模型和一些证据

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This study aims to demonstrate that the concentration (or distribution) of firm R&D intensities within an industry is closely related to the overall R&D intensity of the industry. Unlike the well-studied relationship between sales concentration, or market structure, and industry R&D intensity, the relationship between the concentration of R&D in an industry and its overall R&D intensity has not been explored before. We present a simple model of industry R&D intensity, in which R&D concentration, R&D appropriability, and industry-wide technological opportunities jointly determine industry R&D intensity. In particular, we show that, all else being equal, the more skewed the distribution of firm R&D intensities, the higher the level of industry R&D intensity. We use a six-year panel dataset on the R&D intensities, R&D appropriability, and technological opportunities of four-digit SIC Korean manufacturing industries during the period 1991-1996.
机译：这项研究旨在证明一个行业内企业研发强度的集中（或分布）与该行业的整体研发强度密切相关。与研究集中的销售集中度，市场结构和行业研发强度之间的关系不同，以前从未探索过行业中研发集中度与其总体研发强度之间的关系。我们提出了一个简单的行业研发强度模型，其中研发集中度，研发可支配性以及整个行业的技术机会共同决定了行业研发强度。特别是，我们表明，在所有其他条件相同的情况下，企业研发强度的分布越歪斜，行业研发强度的水平就越高。我们使用了一个为期六年的面板数据集，用于研究1991-1996年间四位数SIC韩国制造业的R＆D强度，R＆D适用性和技术机会。

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