Patents and R and D at the Firm Level: A First Look
收藏NBER1980-10-01 更新2025-01-04 收录
下载链接：
https://www.nber.org/papers/w0561
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资源简介：
This is a first report from a larger study of inventive activity of U.S. firms and some of its consequences. It reports on the relationship between patents applied for and R&D expenditures based on data for 121 large corporations covering the 1968-1975 period. The main conclusion is that there is a
提供机构：
美国国家经济研究局
创建时间：
1980-10-01
