Accounting for the recent surge in U.S. patenting: changes in R&D expenditures, patent yields, and the high tech sector

Author: Kim Jinyoung   Marschke Gerald  

Publisher: Routledge Ltd

ISSN: 1043-8599

Source: Economics of Innovation and New Technology, Vol.13, Iss.6, 2004-09, pp. : 543-558

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Abstract