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http://ssrn.com/abstract=1396751
 
 

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Two-Sided Market Definition


David S. Evans


University of Chicago Law School; University College London; Global Economics Group

November 11, 2009

ABA Section of Antitrust Law, MARKET DEFINITION IN ANTITRUST: THEORY AND CASE STUDIES, Forthcoming

Abstract:     
This paper addresses the analysis of market definition when the parties involved in an antitrust or merger analysis include one or more two-sided platforms. We discuss how standard market definition measures such as SSNIP tests, diversion ratios, and conditional logit demand analyses have to be modified to account for the unique characteristics of two-sided platforms. We also review how market definition of two- sided platforms was treated in recent US and EC case law.

Number of Pages in PDF File: 35

Keywords: multi-sided platforms, two-sided platforms, two-sided markets, market definition, antitrust analysis, merger analysis

JEL Classification: K21, L1, L4

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Date posted: April 29, 2009 ; Last revised: November 13, 2009

Suggested Citation

Evans, David S., Two-Sided Market Definition (November 11, 2009). ABA Section of Antitrust Law, MARKET DEFINITION IN ANTITRUST: THEORY AND CASE STUDIES, Forthcoming. Available at SSRN: http://ssrn.com/abstract=1396751

Contact Information

David S. Evans (Contact Author)
University of Chicago Law School ( email )
1111 E. 60th St.
Chicago, IL 60637
United States
University College London ( email )
London WC1E OEG
United Kingdom
Global Economics Group ( email )
1400 S. Dearborn, Suite 400
Chicago, IL 60603
United States
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