Antitrust & Competition Policy Blog

Editor: D. Daniel Sokol
University of Florida
Levin College of Law

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Friday, April 30, 2010

Semi-Collusion on Investments in the Mobile Internet Market

Posted by D. Daniel Sokol

Torben Stühmeier, University of Duesseldorf, Düsseldorf Institute for Competition Economics has posted Semi-Collusion on Investments in the Mobile Internet Market.

ABSTRACT: This model analyzes mobile network operators' (MNOs) incentives to invest in their facilities in the era of the mobile internet, given a widespread use of third generation (3G) services. Usually, MNOs agree on reciprocal roaming to offer full service to their subscribers. Roaming induces investment spillovers, as due to roaming agreements also rival customers benefit from investment of a MNO. It will be analyzed how different regimes of access regulation affect MNOs' incentives to invest. Semi-collusion on investments should be allowed, if investment spillovers are sufficiently large. The model is able to provide a rational for a ''bill-and-keep'' access pricing regime, proposed by the European Commission, given that a regulator is both able to determine access prices and investments. Given that a social planer only regulates access prices, an access price of zero may lead to over-and underinvestments from a welfare perspective.

http://lawprofessors.typepad.com/antitrustprof_blog/2010/04/semicollusion-on-investments-in-the-mobile-internet-market.html

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