In Germany, the electricity system is evolving to be dominated by feed-ins from volatile renewable sources. The challenge implied is to buffer these fluctuations with the aim to stabilise the system-a task we are used to see carried out in the past by conventional power plants almost...

For the climate conference in Copenhagen, December 7 to 18, after broad expert discussions, the Wuppertal Institute for Climate, Environment and Energy submits a proposal for an effective and equitable climate change agreement.

Mit der Liberalisierung der Strom- und Gasmärkte in Deutschland und Europa werden vor allem wirtschaftliche Zielsetzungen verfolgt. Die Effizienz auf der Angebotsseite von Energie soll erhöht und Überkapazitäten sollen abgebaut werden. Zudem sollen durch den Wettbewerb zwischen verschiedenen...

Im Herbst 2001 veröffentlichte Bundeswirtschaftsminister Werner Müller einen viel diskutierten Energiebericht. Neben einer Bestandsaufnahme der deutschen Energie- und Klimapolitik befasst er sich auch mit einer Analyse der zukünftigen Entwicklungsmöglichkeiten des Energiesystems. Dabei steht...

The first part of this paper analyzes the impact of horizontal mergers of suppliers or retailers on their respective bargaining power. In contrast to previous approaches, we suppose that parties resolve the bargaining problem efficiently. Moreover, by ensuring that demand is independent at all...

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...

This paper presents a model of takeover incentives in an oligopolistic industry, which,in contrast to previous approaches, takes both insiders' and outsiders' gains from anincrease in industry concentration into account. Our main application is to comparetakeover incentives in a differentiated...

This paper investigates how the formation of larger buyers affects a supplier's profits and, by doing so, his incentives to undertake non-contractible activities. We first identify two chan-nels of buyer power, which allows larger buyers to obtain discounts. We subsequently exam-ine the effects...

What is the optimal strategy of a durable-goods monopolist that can offer goods in different qualities? This Paper provides an answer for the case where the market is segmented into low- and high-income buyers. If the monopolist can change their product and price policy sufficiently rapidly -...