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来源类型 | Working Paper |
规范类型 | 报告 |
DOI | 10.3386/w2205 |
来源ID | Working Paper 2205 |
Firm Size and R&D Intensity: A Re-Examination | |
Wesley M. Cohen; Richard C. Levin; David C. Mowery | |
发表日期 | 1987-04-01 |
出版年 | 1987 |
语种 | 英语 |
摘要 | Using data from the Federal Trade Commission's Line of Business Program and survey measures of technological opportunity and appropriability conditions, this paper finds that overall firm size has a very small, statistically in- significant effect on business unit R & D intensity when either fixed industry effects or measured industry characteristics are taken into account. Business unit size has no effect on the R & D intensity of business units that perform R & D, but it affects the probability of conducting R & D. Business unit and firm size jointly explain less than one per cent of the variance in R & D intensity; industry effects explain nearly half the variance. |
主题 | Industrial Organization |
URL | https://www.nber.org/papers/w2205 |
来源智库 | National Bureau of Economic Research (United States) |
引用统计 | |
资源类型 | 智库出版物 |
条目标识符 | http://119.78.100.153/handle/2XGU8XDN/559459 |
推荐引用方式 GB/T 7714 | Wesley M. Cohen,Richard C. Levin,David C. Mowery. Firm Size and R&D Intensity: A Re-Examination. 1987. |
条目包含的文件 | ||||||
文件名称/大小 | 资源类型 | 版本类型 | 开放类型 | 使用许可 | ||
w2205.pdf(424KB) | 智库出版物 | 限制开放 | CC BY-NC-SA | 浏览 |
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