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Wettbewerb im Internet: Was ist online anders als offline?

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  • Haucap, Justus
  • Wenzel, Tobias

Abstract

Das Internet ist stark durch Wettbewerb zwischen Plattformen geprägt, welche potenzielle Tauschpartner zusammenbringen. Die Konkurrenz zwischen solchen mehrseitigen Plattformen und die Marktkonzentration wird maßgeblich bestimmt durch (1) die Stärke der indirekten Netzeffekte, (2) das Ausmaß steigender Skaleneffekte, (3) Überlastungsgefahren, (4) Differenzierung der Plattformen und (5) die Möglichkeit des sogenannten Multihoming. Je nach Ausprägung dieser Faktoren ergeben sich unterschiedliche Konzentrationstendenzen und Markteintrittsbarrieren. Pauschal lässt sich zwar nicht feststellen, dass im Internet besonders viele dauerhaft resistente Monopole anzutreffen wären und ein besonderer Regulierungsbedarf besteht. Gleichwohl zeigt sich, dass einzelne Plattformen wie z.B. ebay auf manchen Märkten durchaus beträchtliche Marktmacht besitzen, die aufgrund erheblicher Markteintrittsbarrieren auch nicht schnell erodieren wird. -- The Internet is characterized by competition between platforms which bring together potential partners of exchange. The degree of competition between these multi-sided platforms und market concentration are determined through (1) the strength of the direct and indirect network effects, (2) the extent of economies of scale, (3) the risk of congestition, (4) platform differentiation, and (5) the possibility of multi-homing. Depending on these factors different market concentrations and barriers to entry result. While there is no general tendency for concentration in the Internet and no general need for special market regulation of online content providers and intermediaries, single platforms may still have long lasting and significant market power which is unlikely to erode fastly, as the example of ebay illustrate.

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Bibliographic Info

Paper provided by Heinrich‐Heine‐Universität Düsseldorf, Düsseldorf Institute for Competition Economics (DICE) in its series DICE Ordnungspolitische Perspektiven with number 16.

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Date of creation: 2011
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Handle: RePEc:zbw:diceop:16

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References

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  19. repec:rje:randje:v:37:y:2006:3:p:645-667 is not listed on IDEAS
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Citations

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Cited by:
  1. Engelhardt, Sebastian & Freytag, Andreas & Köllmann, Volker, 2012. "Wettbewerbspolitischer Handlungsbedarf bei der Verknüpfung von zweiseitigen Märkten im Internet: Der Fall Google
    [Competition policy and vertical integration in internet-based two-sided markets:
    ," MPRA Paper 43326, University Library of Munich, Germany.
  2. Haucap, Justus & Heimeshoff, Ulrich, 2013. "Google, Facebook, Amazon, eBay: Is the internet driving competition or market monopolization?," DICE Discussion Papers 83, Heinrich‐Heine‐Universität Düsseldorf, Düsseldorf Institute for Competition Economics (DICE).

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