| 来源类型 | Working Paper |
| 规范类型 | 报告 |
| DOI | 10.3386/w29770 |
| 来源ID | Working Paper 29770 |
| Patent Publication and Innovation | |
| Deepak Hegde; Kyle F. Herkenhoff; Chenqi Zhu | |
| 发表日期 | 2022-02-21 |
| 出版年 | 2022 |
| 语种 | 英语 |
| 摘要 | How does the publication of patents affect innovation? We answer this question by exploiting a large-scale natural experiment—the passage of the American Inventor's Protection Act of 1999 (AIPA)—that accelerated the public disclosure of most U.S. patents by two years. We obtain causal estimates by comparing U.S. patents subject to the law change with “twin” European patents which were not. After AIPA's enactment, U.S. patents receive more and faster follow-on citations, indicating an increase in technology diffusion. Technological overlap increases between distant but related patents and decreases between highly similar patents, and patent applications are less likely to be abandoned post-AIPA, suggesting a reduction in duplicative R&D. Firms exposed to one standard deviation longer patent grant delays increased their R&D investment by 4% after AIPA. These findings are consistent with our theoretical framework in which AIPA provisions news shocks about related technologies to follow-on inventors and thus alters their innovation decisions. |
| 主题 | Microeconomics ; Households and Firms ; Macroeconomics ; Financial Economics ; Financial Institutions ; Industrial Organization ; Firm Behavior ; Development and Growth ; Innovation and R& ; D |
| URL | https://www.nber.org/papers/w29770 |
| 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/587444 |
| 推荐引用方式 GB/T 7714 | Deepak Hegde,Kyle F. Herkenhoff,Chenqi Zhu. Patent Publication and Innovation. 2022. |
| 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 | ||
| w29770.pdf（6261KB） | 智库出版物 | 限制开放 | CC BY-NC-SA | 浏览 | ||
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