Technological Leadership (de)Concentration: Causes in ICTE
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下载链接：
https://www.nber.org/papers/w22631
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资源简介：
Using patents as indicators of inventive activity, this article characterizes the concentration of origins of invention from 1976 to 2010, and how these changed over time. The analysis finds pervasive deconcentration in virtually every area related to ICT, but it can explain only a small part of
提供机构：
美国国家经济研究局
创建时间：
2016-09-01
