Google is supposed to be the dominant player in most search markets around the world. But what is a search market? To calculate a market share of 90% or more, it has to be clear what the denominator is: Does the search market also include product search and therefore Amazon and eBay or the...

The European Commission is introducing new regulations on submission and publication of data in electricity markets (SPDEM) and on wholesale energy market integrity and transparency (REMIT). I discuss issues relevant for undertaking an evaluation such regulations. I argue that, for market...

The paper is dedicated to the answer of the unresolved question since the turning 1989 whether the popular for their advantages joint ventures manifest in Bulgaria one of their most important disadvantages, namely the realization of the two main types of infringements of competition –...

Studie zu Dispozinsen / Ratenkrediten Aktenzeichen: 514-06.01-2810HS034 Laufzeit 8/2011 – 5/2012 - Zusammenfassung – In Deutschland verfügen etwa 80 Prozent der Haushalte über einen Dispositionskredit. Bei beträchtlicher Variation liegt der eingeräumte Kreditrahmen bei knapp dem 3-fachen...

It is well-known that a monopolist cannot commit to offer a high-quality contract to a consumer reading costs are positive. This paper shows that this also holds in a competitive environment with consumer heterogeneity if the contract space is unrestricted. If firms can offer standardized...

The purpose of this paper is the following: firstly, to chart how much economic reform of CEE electricity industries has taken place to date; secondly, to discuss why progress has been so limited; and, thirdly, to consider the prospects over the next few years. In charting the economic progress to...

What is the best way to reward innovation? While prizes avoid deadweight loss, intellectual property selects high social surplus projects. Optimal innovation policy thus trades off the ex-ante screening benefit and the ex-post distortion. It solves a multidimensional screening problem in the...

We explore the managerial implications and economic consequences of platform sharing under models of horizontal and vertical product differentiation. By using a common platform across different products, firms can save on fixed costs for platform development. At the same time, platform sharing...

This note provides sufficient conditions for immediate agreement in an extensive form model of interdependent bilateral bargaining. The model is suggested by Björnerstedt and Stennek (2006) as a work horse for studying bilateral oligopoly. The key feature of this model is that the firms are...

This paper provides a conceptual framework of multilateral bargaining in a bilaterally oligopolistic industry to analyze the motivations for horizontal mergers, technology choice, and their welfare implications. We first analyze the implication of market structure for the distribution of...