E-Commerce, Two-Sided Markets and Info-Mediation
AbstractParticipants in a market, buyers and sellers, may need the service of an intermediary who will put them into contact and give them information about their potential trading partner. The intermediary chooses what price it will charge to each side to have access to its service. It also chooses what information it will reveal, for example to the buyer about the value of the sellerâs product. In a market with network externalities, it would be optimal that everybody had access to the other side, as each side wants as many agents from the other side to be present as possible. This is however not feasible as the intermediary must charge positive access prices if it is to make any profit. In a market with asymmetric information, it would be optimal that all information about the buyersâ and sellersâ valuation for the traded product be available, but the intermediary will want to conceal or manipulate that information to increase its profit. The paper examines in the first part how network externalities play out in the intermediaryâs access pricing strategies in both a monopoly and a competitive setting. In the second part, the paper shows how the intermediary will strategically manipulate and conceal information to extract the surplus from trade in the market it intermediates.
Download InfoIf you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
Bibliographic InfoPaper provided by Institut d'Économie Industrielle (IDEI), Toulouse in its series IDEI Working Papers with number 380.
Date of creation: Jan 2005
Date of revision:
Contact details of provider:
Postal: Manufacture des Tabacs, Aile Jean-Jacques Laffont, 21 Allée de Brienne, 31000 TOULOUSE
Phone: +33 (0)5 61 12 85 89
Fax: + 33 (0)5 61 12 86 37
Web page: http://www.idei.fr/
More information through EDIRC
Other versions of this item:
- D4 - Microeconomics - - Market Structure and Pricing
- L1 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance
This paper has been announced in the following NEP Reports:
- NEP-ALL-2006-07-03 (All new papers)
- NEP-COM-2006-07-13 (Industrial Competition)
- NEP-MIC-2006-07-03 (Microeconomics)
- NEP-MKT-2006-07-03 (Marketing)
- NEP-NET-2006-07-03 (Network Economics)
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Strausz, Roland, 2004.
"Honest Certification and the Threat of Capture,"
Discussion Paper Series of SFB/TR 15 Governance and the Efficiency of Economic Systems
25, Free University of Berlin, Humboldt University of Berlin, University of Bonn, University of Mannheim, University of Munich.
- Caillaud, Bernard & Jullien, Bruno, 2001. "Competing cybermediaries," European Economic Review, Elsevier, vol. 45(4-6), pages 797-808, May.
- Mark Armstrong, 2006.
"Competition in two‐sided markets,"
RAND Journal of Economics,
RAND Corporation, vol. 37(3), pages 668-691, 09.
- Guerra, G.A., 2001. "Certification Disclosure And Informational Efficiency: A Case For Ordered Ranking Of Levels," Economics Series Working Papers 9964, University of Oxford, Department of Economics.
- Crawford, Vincent P & Sobel, Joel, 1982.
"Strategic Information Transmission,"
Econometric Society, vol. 50(6), pages 1431-51, November.
- Josh Lerner & Jean Tirole, 2004. "A Model of Forum Shopping, with Special Reference to Standard Setting Organizations," NBER Working Papers 10664, National Bureau of Economic Research, Inc.
- Albano, Gian Luigi & Lizzeri, Alessandro, 2001. "Strategic Certification and Provision of Quality," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 42(1), pages 267-83, February.
- Okuno-Fujiwara, Masahiro & Postlewaite, Andrew & Suzumura, Kotaro, 1990. "Strategic Information Revelation," Review of Economic Studies, Wiley Blackwell, vol. 57(1), pages 25-47, January.
- Michael R. Baye & John Morgan, 2001. "Information Gatekeepers on the Internet and the Competitiveness of Homogeneous Product Markets," American Economic Review, American Economic Association, vol. 91(3), pages 454-474, June.
- Khalil, Fahad & Lawarree, Jacques, 1995. "Collusive Auditors," American Economic Review, American Economic Association, vol. 85(2), pages 442-46, May.
- Weyl, E. Glen, 2008. "Monopolies in Two-Sided Markets: Comparative Statics and Identification," Department of Economics, Working Paper Series qt69c9c56z, Department of Economics, Institute for Business and Economic Research, UC Berkeley.
- Wataru Tamura, 2013. "Auction Platform Design and the Linkage Principle," CARF F-Series CARF-F-330, Center for Advanced Research in Finance, Faculty of Economics, The University of Tokyo.
- Jullien, Bruno, 2010.
"Two-Sided B2B Platforms,"
TSE Working Papers
11-223, Toulouse School of Economics (TSE), revised Mar 2011.
- E. Glen Weyl, 2010. "A Price Theory of Multi-sided Platforms," American Economic Review, American Economic Association, vol. 100(4), pages 1642-72, September.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: ().
If references are entirely missing, you can add them using this form.