Patents: Recent Trends and Puzzles
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This paper reviews the historical data on patenting in the United States with special reference to the last 20 years and their potential relation, if any, to the recent productivity slowdown. Two Points are made: Patents are not a "constant-yardstick" indicator of either inventive input or output.
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美国国家经济研究局创建时间：
1989-04-01
