This paper analyses the competitiveness of the mobile telecommunications industry across the European Union. A structural model of demand and supply has been estimated for annual data on 15 EU countries from 1998 to 2002. Estimates of country-specific conjectural variations allow us to compare...

This thesis addresses theoretical and empirical questions related to network economics. In particular, it analyze network effects and switching costs in the mobile telecommunications industry. The first chapter analyzes competition in a two-period differentiated-products duopoly in the presence...

This article estimates price elasticities of demand for the duration of mobile telephone calls for Portugal, as well as the monetary loss per consumer of the existence of a minimum duration of calls. The demand for the duration of calls is estimated using a Tobit model for panel data with...

This paper estimates reduced-form models for incumbent prices in the fixed telecommunications industry using data for European Union (EU) countries from 1998 to 2002. The regulation of fixed-line telephony has a significant impact on prices for residential consumers. Liberalization of the...

This article presents a simple method for screening competition in differentiated products oligopoly with a small number of competitors. In many situations, estimation of price elasticities of demand may be impossible due to difficulties in defining demand or missing data on sales. However, even...