In this paper, we study the adjustments made by National Regulatory Authorities to simple margin squeeze tests, in order to model a reasonably efficient operator. More precisely, by inspecting the possible differences between an entrant and an incumbent that would cause a market disadvantage for...

We study the implementation of reasonably efficient operator margin squeeze tests by National Regulatory Authorities in European telecommunications markets. We provide a theoretical framework in which we show how regulatory authorities deal with the asymmetries between the entrants and the...

In the telecommunications industry, the ladder-of-investment approach claims that service-based competition (when entrants lease access to incumbents’ facilities) can serve as a “stepping stone” for facility-based entry (when entrants build their own infrastructures to provide services)....

When Apple entered the ebook market, prices rose. A recent court decision found Apple guilty of colluding with publishers, blaming the price hike, in part, on agency agreements and prohibiting their use. Building a model to compare these with traditional wholesale agreements, we identify a...

This paper studies the implementation of Reasonably Efficient Operator margin squeeze tests by National Regulatory Authorities in European telecommunications markets. It provides a theoretical framework which shows how regulatory authorities deal with the asymmetries between entrants and...

In this paper we explore the impact of regulation; privatization and competition on the both mobile and fixed phone performance, in terms of service quality (network faults) and tariffs in both fix and mobile telecommunication services, using the technique of tow econometric approaches. A...

Economic incentives for security investment in elements of the Internet is of increasing concern. This paper contains an exploration of the incentives for Internet service providers (ISP)s to invest in security. The analysis focuses on the spillover effects of ISP security investments to other...

This paper provides an empirical analysis how tariff diversity aspects fixed-line broad-band uptake, utilizing a new data set with 1497 fixed-line and 2158 mobile broad-band tariffs from 91 countries across the globe. An instrumental variable approach is applied to estimate demand, controlling...