Identifying Two-Sided Markets
Tilburg University, TILEC; University of Florence, Dipartimento di Scienze Economiche
George Mason University School of Law; Tilburg University - Tilburg Law and Economics Center (TILEC)
Eric Van Damme
TILEC and CentER, Tilburg University
February 21, 2012
TILEC Discussion Paper No. 2012-008
We review the burgeoning literature on two-sided markets focusing on the different definitions that have been proposed. In particular, we show that the well-known definition given by Evans is a particular case of the more general definition proposed by Rochet and Tirole. We then identify the crucial elements that make a market two-sided and, drawing from both theory and practice, derive suggestions for the identification of the two-sided nature of a market. Our suggestions are relevant not only for the analysis of traditional two-sided markets, such as newspapers and payment cards, but also for the analysis of many new markets, such as those for online social networks, online search engines and Internet news aggregators.
Number of Pages in PDF File: 26
Keywords: two-sided markets, platforms, network effects
JEL Classification: L40, L50, K21
Date posted: February 21, 2012
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