Abstract In markets with competing interconnected networks like mobile telecommunication markets investments affect the investor’s and also any competitors’ profits. In a theoretical model it is shown that cost-reducing investments reduce the investor’s termination rates and increase...

From the angle of competition policy, Voice over IP looks like a panacea. It not only brings better service, but it also increases competitive pressure on former telecommunications monopolists. This paper points to the largely overlooked downside. In a pure world of Internet telephony, there...

This paper examines the causes and effects of mobile number portability (MNP) and provides a survey of its implementation in Europe. We first examine the competitive effects and the costs of introducing MNP. Next, we discuss how to charge for MNP. We argue that a price cap regime starting from...

This paper analyzes the impact of different payment regimes for mobile-to-mobile off-net calls on the diffusion of mobile telephony, using data on 84 countries from all over the world. Since the decision whether or not countries are likely to switch from RPP to CPP is not independent from...

The 2002 prices of suppliers in German call-by-call telephone market are rather dispersed, out-of-phase (uncorrelated), and show systematic down-up movements. In 2004, these prices are less dispersed, more in-phase and show more upwards runs than downs-ups. In both years, we clearly do not...

This paper examines mobile termination fees and their regulation when networks are asymmetric in size. It is demonstrated that with consumer ignorance about the exact termination rates (a) a mobile network's termination rate is the higher the smaller the network's size (as measured through its...

Die Regulierungsbehörden einiger Länder sind daran gegangen,bestimmte Bereiche des Mobilfunks intensiver zu regulieren. Ins Visier der Regulierer ist vor allem die Mobilterminierung,d.h.die Realisierung eines Mobilfunkgesprächs vom Übergabepunkt eines Netzbetreibers zum Endgerät eines...

Die Regulierungsbehörden einiger Länder sind daran gegangen, bestimmte Bereiche des Mobilfunks intensiver zu regulieren. Ins Visier der Regulierer ist vor allem die Mobilterminierung, d.h. die Realisierung eines Mobilfunkgesprächs vom Übergabepunkt eines Netzbetreibers zum Endgerät eines...

This paper examines the effects of various price-cap rules on peakload pricing. The issue recently gains practical importance in regulated network industries. The formal approach reveals that efficiency properties of various price-cap rules are, notwithstanding some problems, fairly good. A...

This paper analyses price structures in the liberalized German market for long-distance telecommunications services. Theoretically deduced patterns are backed-up by empirical observations. The market is exceptionally competitive; entry is taking place on a large scale and prices are falling...