Competition

Rethinking the use of traditional antitrust enforcement tools in multi-sided markets

 

A key challenge for competition agencies, particularly in digital markets, is the multi-sided nature of some of the markets that they analyse.

In June 2017 the OECD held a hearing to look at an important question that competition agencies face: Are the tools traditionally used to define markets, and to assess market power, exclusionary conduct, vertical restraints, or efficiencies, sufficient to address those questions in the context of multi-sided markets?

Moreover, if they do need rethinking, how might these be redesigned or reinterpreted to equip agencies with the analytical tools they need in multi-sided markets. At the hearing, a range of expert economists from agencies, academia, and private practice presented and discussed practical methodological proposals to deal with such recurring questions for many competition agencies. All papers and presentations can be found on this page.

Access the full list of Competition Policy Roundtables

JUNE 2017 - SESSION INFORMATION AND MATERIALS

INVITED SPEAKERS 

PAPERS

Kurt BREKKE Bio
Chief Economist, Norwegian Competition Authority, 
Professor of Economics, the Norwegian School of Economics

Cristina CAFFARRA Bio 
Vice President, Head of European Competition, Charles River Associates

Kate COLLYER Bio
Deputy Chief Economist, Competition and Markets Authority, UK

Lapo FILISTRUCCHI Bio
Researcher, Department of Economics (University of Florence)

Michael KATZ Bio
Professor of Economics, Haas School of Business, University of California Berkeley

Paul JOHNSON Bio 
Special Economic Advisor to the Canadian Commissioner for Competition

Jorge PADILLA Bio
Senior Managing Director, Head of Compass Lexecon Europe 

Arno RASEK 
Chief Economist, Bundeskartellamt, Germany

Howard SHELANSKI Bio
Partner, Davis Polk & Wardwell 
Professor of Law at Georgetown University

Tommaso VALLETTI Bio
Chief Economist, DG COMP and Professor of Economics at Imperial College Business School

Measuring market power in multi-sided markets 
by K. Brekke

The competition analysis of vertical restraints in multi-sided markets 
by C. Cafarra and K-U Kühn

Measuring market power in multi-sided markets 
by K. Collyer, H. Mullan and N. Timan

Market definition in multi-sided markets 
by L. Filistrucchi

Exclusionary conduct in multi-sided markets
by M. Katz

Suggestions for competition authorities when assessing vertical restraints in multi-sided platforms 
by P. A. Johnson

Quantifying horizontal merger efficiencies in multi-sided markets: An application to stock exchange mergers 
by E. Andreu and J. Padilla

Market definition in multi-sided markets 
by A. Rasek and S. Wismer 

Network effects and efficiencies in multisided markets 
by H. Shelanski, S. Knox and A. Dhilla

Exclusionary practices and two-sided platforms 
by T. Valletti, A. Amelio and L. Karlinger

PRESENTATIONS

 

 

DOCUMENTS AND LINKS

 

Digital Economy, Innovation and Competition

Competition and cross platform parity agreements, 2015

Market Definition, 2012

Economic Evidence in Merger Analysis, 2011

Two-Sided Markets, 2009

 

 

» Access the full list of Competition Policy Roundtables

» Link to the  OECD Competition Home Page 

 

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