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Sequential innovation, patents, and imitation
Author(s) -
Bessen James,
Maskin Eric
Publication year - 2009
Publication title -
the rand journal of economics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.687
H-Index - 108
eISSN - 1756-2171
pISSN - 0741-6261
DOI - 10.1111/j.1756-2171.2009.00081.x
Subject(s) - innovator , imitation , competition (biology) , industrial organization , profit (economics) , intellectual property , economics , business , microeconomics , computer science , psychology , social psychology , ecology , biology , operating system
We argue that when innovation is “sequential” (so that each successive invention builds in an essential way on its predecessors) and “complementary” (so that each potential innovator takes a different research line), patent protection is not as useful for encouraging innovation as in a static setting. Indeed, society and even inventors themselves may be better off without such protection. Furthermore, an inventor's prospective profit may actually be enhanced by competition and imitation. Our sequential model of innovation appears to explain evidence from a natural experiment in the software industry.