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Semicollusion
Foundations and Trends® in
Microeconomics
Volume 5 Issue 3
DOI: 10.1561/0700000034
Semicollusion
Frode Steen
Norwegian School of Economics and Business Administration)
Frode.Steen@nhh.no
Lars Sørgard
Norwegian School of Economics and Business Administration)
Lars.Sorgard@nhh.no
SUGGESTED CITATION:
Frode Steen and Lars Sørgard (2009)
"Semicollusion",
Foundations and Trends® in Microeconomics: Vol. 5: No 3, pp 153-228.
http://dx.doi.org/10.1561/0700000034
Abstract
The notion semicollusion refers to situations where firms
collude in one (or several) choice variable(s) and compete in others. For example,
firms collude on prices and compete on advertising. Although the notion semicollusion
is not so often used explicitly, it turns out that the topic is covered extensively
in the economic literature. Moreover, the phenomena semicollusion seems to be
present in numerous industries. The purpose of this survey is to explain how
semicollusion works in theory, describe empirical studies of semicollusion, and
discuss the possible welfare effects of semicollusion.
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