Wettbewerb im deutschen Mobilfunkmarkt
This paper studies competition in the German market for mobile telecommunications, motivated by recent suggestions that T-Mobile and Vodafone possess a position of collective dominance. Allegedly, their position of joint dominance is secured through a combination of first-mover advantages and discrimination between on-net and off-net prices. While our qualitative analysis remains inconclusive, as some factors tend to favour collusion while others make collusion more difficult to sustain, our empirical analysis suggests that T-Mobile and Vodafone cannot act independently of their smaller rivals, but that they are disciplined by their smaller competitors' offerings.
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- Genakos, Christos D. & Valletti, Tommaso, 2009.
"Testing the "Waterbed" Effect in Mobile Telephony,"
CEPR Discussion Papers
7611, C.E.P.R. Discussion Papers.
- Christos Genakos & Tommaso Valletti, 2008. "Testing the “Waterbed” Effect in Mobile Telephony," CEIS Research Paper 110, Tor Vergata University, CEIS, revised 11 Jul 2008.
- Christos Genakos & Tommaso Valletti, 2007. "Testing the "waterbed" effect in mobile telephony," LSE Research Online Documents on Economics 19680, London School of Economics and Political Science, LSE Library.
- Christos Genakos & Tommaso Valletti, 2007. "Testing the 'Waterbed' Effect in Mobile Telephony," CEP Discussion Papers dp0827, Centre for Economic Performance, LSE.
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