We test the effect of entry on the tariff choices of incumbent cellular firms. We relate the change in the breadth of … from personal communications services (PCS) firms. Entry by PCS competitors differed across geographic markets due to the … upgrade their technology from the old analog technology to the new digital technology in markets with more entry, suggesting …

discontinuous due to entry being costly. Moreover, permitting price discrimination fosters entry which in many cases improves … welfare. Nevertheless, entry can also reduce welfare because it may lead to a severe inefficiency in production. …

discontinuous due to entry being costly. Moreover, permitting price discrimination fosters entry which in many cases improves … welfare. Nevertheless, entry can also reduce welfare because it may lead to a severe inefficiency in production. …

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 …