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Diagonal Mergers and Foreclosure in the Internet

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  • Giovannetti Emanuele

    (Faculty of Economics, University of Cambridge and University of Rome “La Sapienza”)

Abstract

We study the incentives for a "diagonal" merger between two Internet Service Providers, one a wireless retail only ISP in two origination markets, and the second a vertically integrated wired retailer in one market and an upstream provider in the other. The merger's effects depend on differentiation in access modalities; only with high differentiation does the merger have positive welfare effects. We focus on post-merger foreclosure, which, when it happens, only takes place in the market where the merger is horizontal and not where the merger is vertical. The Network architecture used is meant to capture Internet routing.

Suggested Citation

  • Giovannetti Emanuele, 2005. "Diagonal Mergers and Foreclosure in the Internet," Review of Network Economics, De Gruyter, vol. 4(1), pages 1-30, March.
    • Handle: RePEc:bpj:rneart:v:4:y:2005:i:1:n:4
    DOI: 10.2202/1446-9022.1065
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    Cited by:

    1. Alessio D'Ignazio & Emanuele Giovannetti, 2006. "From Exogenous To Endogenous Economic Networks: Internet Applications," Journal of Economic Surveys, Wiley Blackwell, vol. 20(5), pages 757-796, December.
    2. Giovannetti, E. & Neuhoff, K. & Spagnolo, G., 2005. "Agglomeration in Internet Co-operation Peering Agreements," Cambridge Working Papers in Economics 0505, Faculty of Economics, University of Cambridge.
    3. Emanuele Giovannetti & Karsten Neuhoff & Giancarlo Spagnolo, 2007. "Trust And Virtual Districts: Evidence From The Milan Internet Exchange," Metroeconomica, Wiley Blackwell, vol. 58(3), pages 436-456, July.
    4. Yao Zhiyong & Zhou Wen, 2015. "Vertical or Horizontal: Endogenous Merger Waves in Vertically Related Industries," The B.E. Journal of Economic Analysis & Policy, De Gruyter, vol. 15(3), pages 1237-1262, July.

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