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来源类型 | Working Paper |
规范类型 | 报告 |
DOI | 10.3386/w5321 |
来源ID | Working Paper 5321 |
Research and Productivity | |
Boyan Jovanovic; Yaw Nyarko | |
发表日期 | 1995-10-01 |
出版年 | 1995 |
语种 | 英语 |
摘要 | We model research as a signal on an unknown parameter of a technology. We distinguish applied from basic research and show that firms in the same industry can optimally choose different research portfolios, and that basic research can seem to have a higher rate of return than applied research, even though it really doesn't -- essentially, firms on a 'fast track' upgrading policy opt for basic research but fast and slow-track upgrading policies can coexist in a long-run equilibrium. We also derive the lag structure for how R&D affects the firm's stock of knowledge. To a first approximation, the lags decay geometrically (as is typically assumed in practice) but the rate of decay is endogenous, and depends on how fast the firm is upgrading its technology. |
主题 | Other |
URL | https://www.nber.org/papers/w5321 |
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/562773 |
推荐引用方式 GB/T 7714 | Boyan Jovanovic,Yaw Nyarko. Research and Productivity. 1995. |
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文件名称/大小 | 资源类型 | 版本类型 | 开放类型 | 使用许可 | ||
w5321.pdf(415KB) | 智库出版物 | 限制开放 | CC BY-NC-SA | 浏览 |
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