The Quality of Ideas: Measuring Innovation with Multiple Indicators
收藏NBER1999-09-01 更新2025-01-04 收录
下载链接：
https://www.nber.org/papers/w7345
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资源简介：
We model early expectations about the value and technological importance ('quality') of a patented innovation as a latent variable common to a set of four indicators: the number of patent claims, forward citations, backward citations and family size. The model is estimated for four technology areas
提供机构：
美国国家经济研究局
创建时间：
1999-09-01
