Over the past decade, Africa has been experiencing an economic resurgence. Yet, the continent is facing several difficult challenges and many economies of the region continue to be among the least competitive in the world. Africa's competitiveness is adversely affected by: (i) poor regional...

A general theoretical and empirical framework is developed for assessing the potential of a vertically integrated firm to foreclose downstream competitors. Using this framework a policymaker may also evaluate the empirical welfare effects from a vertically integrated firm raising rivals' costs....

This paper approaches some of the issues about relationship between two economic powers, E.U. and U.S. In this paper I tried to do an analysis at the macroeconomic level between the U.S. and E.U.. These two economic powers do not have long historical economic connection but I am sure that this...

The Formula One Championship (F1) is one of the biggest sports businesses in the world. But, however, it seems to astonish that only very few scholarly articles analyze the F1 business. The aim of this study is to contribute to closing two gaps in the existing literature: it contributes (1) to...

The Formula One Championship (F1) is one of the biggest sports businesses in the world. But, however, it seems to astonish that only very few scholarly articles analyze the F1 business. The aim of this study is to contribute to closing two gaps in the existing literature: it contributes (1) to...

This paper analyzes the competitive interplay of prices amongst retail channels: offline (brick-and-mortar) and online (such as retailers’ websites and online marketplaces). We find evidence of a close competitive relationship between the two channels, in which prices correspond tightly across...

Abstract In markets with competing interconnected networks like mobile telecommunication markets investments affect the investor’s and also any competitors’ profits. In a theoretical model it is shown that cost-reducing investments reduce the investor’s termination rates and increase...

This paper considers the impact of European telecom regulation on the value of affected companies. Employing a repeating ARGARCH model, I compare the effect of three types of regulation which are categorized based on the addressed subject, i.e. cross-market, country-specific and company-specific...

This paper analyses how different types of access regulation to next generation networks affect investments and consumer welfare. The model consists of an investment stage with uncertain returns and subsequent quantity competition. The access price is a function of investment costs and the...

Eine Reihe von Autoren - vor allem im deutschsprachigen - Raum begründet die Notwendigkeit regulatorischer Eingriffe in Profisportmärkte damit, dass der Wettbewerb auf diesen Märkten systematisch versage. Als wesentliche Ursache für Wettbewerbsprobleme innerhalb dieser Ligen oder...