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Strategies for exploiting American inventiveness in the world marketplace : hearings before the Subcommittee on Science, Research and Technology of the Committee on Science and Technology, House of Representatives, 99th Congress, 2nd session, June 24, 25, 26, 1986
(1986)
Invention and economic development
Schmookler, Jacob, (1951)
The value of patents as indicators of inventive activity
Griliches, Zvi, (1986)