The paper focuses on the relation of competition to changes in productivity. Specifically, it compares the experience of AT&T Long Lines, operating in an increasingly competitive market, with that of eight local telephone monopolies. Both the estimation of total factor productivity growth and...

The study focuses on forecasts of cost savings from merger based on an analysis of economies of scale for eight U.S. telephone companies providing mainly local service. Based on data for the period 1951-91, we conclude that cost savings from mergers and economies of scale are unlikely for large...

As the stock of mobile telephones surpassed fixed telephones, thereafter reaching a density of more than 50 per 100 inhabitants in Korea, the potential for mobile phones to become a substitute for, and directly compete with fixed phones, has become evident. The aim of this paper is to examine...