Preisgarantien im Einzelhandel scheinen auf den ersten Blick Ergebnis eines intensiven Wettbewerbs zu sein. Theoretische Analysen und empirische Studien zeigen jedoch, dass dies in der Regel nicht der Fall ist. Preisgarantien und hier vor allem Garantien, bei denen mehr als die Differenz zu...

This paper is about a model of Bertrand competition in a homogeneous-good market with free entry of identical firms and variable returns to scale. If the optimum number of active firms in the market is two or more, and the number of active firms is equal to that optimum number, then Bertrand...

Cartelists operate in an uncertain environment, facing market demand uncertainty and the possibility of being detected by the antitrust agency. We develop a dynamic model in which an incumbent cartel decides whether or not to voluntarily dissolve the cartel based on the observed profit and the...

This paper focuses on the problems posed by the uniform price and market cream skimming in a context in which the incumbent is restricted asymmetric prices and products and analyzes the risks of a graveyard spiral process. We point that the price elasticity of demand, the brand loyalty and the...

Einkaufen in Internet, die Nutzung von sozialen Netzen oder Online- Banking gehören zum Alltag der Verbraucher in Deutschland. Das Thema Privatsphäre und Datenmissbrauch ist deshalb nahezu täglich in den Medien. Da ist es erstaunlich, dass fundiertes wissenschaftliches Wissen, wie Verbraucher...

We study cartel stability in a differentiated price-setting duopoly with returns to scale. We show that a cartel may be equally stable in the presence of lower differentiation, provided that the decreasing returns parameter is high. In addition we demonstrate that for a given factor of discount,...

In this article we develop a microeconomic framework to study the relationships among privatization, competition for deposits and performance in banking. Particularly, we analyze banking privatization when competitive strategies of the Cournot and Stackelberg types are allowed. Our findings show...

Increasing attention is paid to risk management under the recent regulatory frameworks of the insurance and financial sectors. It is required by the regulator that institutions have a capital to face potential losses from their activity. This capital is usually assessed by means of risk...