Information technology has become a constant presence in contemporary life, infiltrating community, business and state affairs. This book discusses the uses and problems of IT in both developing and advanced countries, focusing on the ways in which IT changes society without neglecting the...

Recent industry studies found the Internet backbone industry competitive. In our paper we explore a novel route to monitor for market power using prices and quality data from Band-X. First we test the hypothesis that Europe is a connectivity market on its own, unchallenged by the US and then, by...

The model explains the emergence of asymmetric productive structures among regions based on adoption of a quality improving technology. Firms' products are differentiated both in location and quality, location is given. We characterize symmetric and asymmetric equilibria of the two stage game in...

Internet Service Providers compete for customers while exchanging traffic flows to provide a complete, end to end, service to final users. This requires reliable interconnections among competitors that form multiple Global Supply Chain Networks (GSCNs) for the delivery and exchange of Internet...

In this paper we study concentration in the European Internet upstream access market. Measurement of market concentration depends on correctly defining the market, but this is not always possible as Antitrust authorities often lack reliable pricing and traffic data. We present an alternative...