Patents and R&D: Searching for a Lag Structure
收藏NBER1983-11-01 更新2025-01-04 收录
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https://www.nber.org/papers/w1227
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资源简介：
This paper extends earlier work on the R&D to patents relationship (Pakes-Griliches 1980, and Hausman, Hall, and Griliches, 1984) to a larger but shorter panel of firms. Using both non-linear least squares and Poisson type models to treat the problem of discreteness in the dependent variable the
提供机构：
美国国家经济研究局
创建时间：
1983-11-01
