Google, Facebook, Amazon, eBay: Is the Internet driving competition or market monopolization?

  • Justus Haucap
  • Ulrich HeimeshoffEmail author
Original Paper


This paper discusses the general characteristics of online markets from a competition theory perspective and the implications for competition policy. Three important Internet markets are analyzed in more detail: search engines, online auction platforms, and social networks. Given the high level of market concentration and the development of competition over time, we use our theoretical insights to examine whether (a) leading Internet platforms have non-temporary market power and, based on this analysis, (b) whether any specific market regulation beyond general competition law rules is warranted in these three online markets.


Two-sided markets Online markets Digital economy Antitrust E-commerce 

JEL Classification

L12 L41 L81 L82 L86 


  1. Argenton C, Prüfer J (2012) Search engine competition with network externalities. J Compet Law Econ 8(1):73–105CrossRefGoogle Scholar
  2. Bagwell K (2007) The economic analysis of advertising. In: Armstrong M, Porter R (eds) Handbook of industrial organization vol 3. Elsevier, Amsterdam, pp 1701–1844CrossRefGoogle Scholar
  3. Bajari P, Hortaçsu A (2004) Economic insights from Internet auctions. J Econ Lit 42:457–486CrossRefGoogle Scholar
  4. Becker GS, Murphy KM (1993) A simple theory of advertising as a good or bad. Q J Econ 108:941–964CrossRefGoogle Scholar
  5. Benkler Y (2006) The wealth of networks. Yale University Press, New HavenGoogle Scholar
  6. Bork RH, Sidak JG (2012) What does the Chicago school teach about Internet search and the antitrust treatment of Google? J Compet Law Econ 8:1–38CrossRefGoogle Scholar
  7. Caillaud B, Jullien B (2003) Chicken & egg: competition among intermediation service providers. Rand J Econ 34:309–328CrossRefGoogle Scholar
  8. Dellarocas C (2006) Reputation mechanisms. In: Hendershott T (ed) Economics and information systems. Elsevier, Amsterdam, pp 629–660CrossRefGoogle Scholar
  9. Dixit A, Stiglitz J (1977) Monopolistic competition and optimum product diversity. Am Econ Rev 67:297–308Google Scholar
  10. Ellison G, Ellison SF (2005) Lessons about markets from the Internet. J Econ Perspect 19:139–158CrossRefGoogle Scholar
  11. Evans D, Schmalensee R (2007) The industrial organization of markets with two-sided platforms. Compet Policy Int 3:151–179Google Scholar
  12. Evans D, Schmalensee R (2008) Markets with two-sided platforms. In: ABA section of antitrust law (ed) Issues in competition law and policy. pp 667–693Google Scholar
  13. Federal Trade Commission (2013) Google agrees to change its business practices to resolve FTC competition concerns in the markets for devices like smart phones, games and tablets, and in online search (online at:
  14. Haucap J (2012) Wie lange hält Googles Monopol? MedienWirtschaft: Zeitschrift für Medienmanagement und Kommunikationsökonomie 9:40–43Google Scholar
  15. Haucap J, Wenzel T (2009) Ist eBay unbestreitbar ein nicht-bestreitbares Monopol? Monopolisierungsgefahren bei Online-Marktplätzen. In: Dewenter R, Kruse J (eds) Wettbewerbsprobleme im Internet. Nomos Verlag, Baden-Baden, pp 7–34Google Scholar
  16. Haucap J, Wenzel T (2011) Wettbewerb im Internet: was ist online anders als offline? Z Wirtschpolit 60:200–211Google Scholar
  17. Jullien B (2005) Two-sided markets and electronic intermediaries. CESifo Econ Stud 51:232–260CrossRefGoogle Scholar
  18. Jullien B (2006) Two-sided markets and electronic intermediaries. In: Illing G, Peitz M (eds) Industrial organization and the digital economy. MIT-Press, Cambridge, pp 272–303Google Scholar
  19. Katz M, Shapiro C (1985) Network externalities, competition, and compatibility. Am Econ Rev 75:424–440Google Scholar
  20. Krugman P (1980) Scale economies, product differentiation, and the pattern of trade. Am Econ Rev 70:950–959Google Scholar
  21. Levy S (2009) Secret of googlenomics: data-fueled recipe brews profitability. Wired Magazine 17 June 2009.
  22. Lucking-Reiley D (1999) Using field experiments to test equivalence between auction formats: magic on the Internet. Am Econ Rev 89:1063–1080CrossRefGoogle Scholar
  23. Manne GA, Wright JD (2011) Google and the limits of antitrust: the case against the case against Google. Harv J Law Public Policy 34:171–244Google Scholar
  24. Melnik MI, Alm J (2002) Does a seller’s ecommerce reputation matter? Evidence from ebay auctions. J Ind Econ 50:337–349CrossRefGoogle Scholar
  25. Mueller ML, Lemstra W (2011) Liberalization and the Internet. In: Finger M, Künneke RW (eds) International handbook of network industries: the liberalization of infrastructure. Elgar, Cheltenham, pp 144–161Google Scholar
  26. Parker GW, van Alstyne M (2005) Two-sided network effects: a theory of information product design. Manag Sci 51:1494–1504CrossRefGoogle Scholar
  27. Peitz M (2006) Marktplätze und indirekte Netzwerkeffekte. Perspekt Wirtschpolit 7:317–333Google Scholar
  28. Pollock R (2010) Is Google the next Microsoft: competition, welfare and regulation in online search. Rev Netw Econ 9(4). doi: 10.2202/1446-9022.1240
  29. PWC (2013) IAB Internet advertising revenue report, 2012 full year results. Online available at:
  30. Resnick P, Zeckhauser R, Swanson J, Lockwood K (2006) The value of reputation on ebay: a controlled experiment. Exp Econ 9:79–101CrossRefGoogle Scholar
  31. Rochet JC, Tirole J (2003) Platform competition in two-sided markets. J Eur Econ Assoc 1:990–1029CrossRefGoogle Scholar
  32. Rochet JC, Tirole J (2006) Two-sided markets: a progress report. Rand J Econ 37:645–667CrossRefGoogle Scholar
  33. Rohlfs J (1974) A theory of interdependent demand for a communications service. Bell J Econ Manag Sci 5:16–37CrossRefGoogle Scholar
  34. Vogelsang M (2010) Dynamics of two-sided Internet markets. Inf Econ Econ Pol 7:129–145CrossRefGoogle Scholar
  35. Von Blanckenburg K, Michaelis M (2008a) dDay – eBay: Funktionsdefekte auf dem Markt für Online-Auktionshäuser. Wettbewerb in Recht und Praxis 4(2008):463–470Google Scholar
  36. Von Blanckenburg K, Michaelis M (2008b) Regulierungsmöglichkeiten auf dem Markt für Online-Auktionen. Wirtschaftsdienst 88:415–420CrossRefGoogle Scholar
  37. Wright J (2004) One-sided logic in two-sided markets. Rev Netw Econ 3:42–63CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.Düsseldorf Institute for Competition Economics (DICE)Heinrich-Heine-University of DüsseldorfDüsseldorfGermany

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