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  1. 1

    The economics of invention incentives : patents, prizes, and research contracts by Wright, Brian D

    Published 1983
    Book
  2. 2

    Institutional change in intellectual property rights by Evenson, Robert E, Putnam, Jonathan D

    Published 1987
    Book
  3. 3

    Private inventive activity in Indian manufacturing : its extent and determinants by Deolalikar, Anil B, Evenson, Robert E

    Published 1990
    Book