They Don't Invent Them Like They Used To: An Examination of Energy Patent Citations Over Time
收藏NBER2005-06-01 更新2025-01-04 收录
下载链接：
https://www.nber.org/papers/w11415
下载链接
链接失效反馈官方服务：
资源简介：
This paper uses patent citation data to study flows of knowledge across time and across institutions in the field of energy research. Popp (2002) finds the level of energy-saving R&D depends not only on energy prices, but also on the quality of the accumulated knowledge available to inventors.
提供机构：
美国国家经济研究局
创建时间：
2005-06-01
