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来源类型 | Working Paper |
规范类型 | 报告 |
DOI | 10.3386/w27011 |
来源ID | Working Paper 27011 |
The Roots of Agricultural Innovation: Patent Evidence of Knowledge Spillovers | |
Matthew S. Clancy; Paul Heisey; Yongjie Ji; GianCarlo Moschini | |
发表日期 | 2020-04-20 |
出版年 | 2020 |
语种 | 英语 |
摘要 | This chapter investigates the extent to which agricultural innovations draw on ideas originating outside of agriculture. We identify a large set of US patents for agricultural technologies granted between 1976 and 2018. To measure knowledge spillovers to these patents, we rely on three proxies: patent citations to other patents, patent citations to the scientific literature, and a novel text analysis to identify and track new ideas in the patent text. We find that more than half of knowledge flows originate outside of agriculture. The majority of these knowledge inflows, however, still originate in domains that are close to agriculture. |
主题 | Development and Growth ; Innovation and R& ; D ; Environmental and Resource Economics ; Agriculture |
URL | https://www.nber.org/papers/w27011 |
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/584683 |
推荐引用方式 GB/T 7714 | Matthew S. Clancy,Paul Heisey,Yongjie Ji,et al. The Roots of Agricultural Innovation: Patent Evidence of Knowledge Spillovers. 2020. |
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 | ||
w27011.pdf(1291KB) | 智库出版物 | 限制开放 | CC BY-NC-SA | 浏览 |
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