In this paper, we develop the game-theoretic electricity market model ElStorM that includes the possibility of strategic electricity storage. We apply the model to the German electricity market and analyze different realistic and counterfactual cases of strategic and non-strategic pumped hydro...

Motivated by the initiation of the third EU ETS trading period in January 2013, this paper examines the effects of EUA price variations on the electricity mix. We focus on the German electricity market, since it is one of the most important EU electricity markets. In this context, we formulate a...

This paper provides the first empirical analysis of the (short-term) welfare consequences of an alcohol ban. Using subjective well-being data to proxy individual welfare, I apply a regression discontinuity design where the date of the implementation of the ban in the German federal state of...

This paper provides the first empirical analysis of the (short-term) welfare consequences of an alcohol ban. Using subjective well-being data to proxy individual welfare, I apply a regression discontinuity design where the date of the implementation of the ban in the German federal state of...

This paper studies the introduction of new products (increase in product variety) in the automobile industry. The focus is on the two sources of market power that may allow the firms to get higher profits (and, thus, recoup investments): new products and brand-name reputation. The effects of new...

We report results from a Cournot triopoly experiment with different subject pools: German students, Malaysian students, and Malaysian managers. While German students play Nash, we reject the hypothesis that both Malaysian students and managers select the Nash quantity. Moreover, Malaysian...

We study the strategic utilization of storage in imperfect electricity markets. We apply a game-theoretic Cournot model to the German power market and analyze different counterfactual and realistic cases of pumped hydro storage. Our main finding is that both storage utilization and...

Does the internet increase competition? To address this question, I exploit two institutional details unique to Germany: (1) Some municipalities received glass fibre cables that cannot be upgraded to DSL; I use these municipalities as a treatment group with reduced online competition. (2) German...

Am 26. Februar 2007 hat die EU-Kommission ein beschleunigtes Vertragsverletzungsverfahren gegen Deutschland wegen der Einführung von angeblichen "Regulierungsferien" in dem jüngst novellierten Telekommunikationsgesetz (TKG) eröffnet. Die Kommission vermutet, dass die dort getroffene...

Die europäischen Postmärkte sollen bis spätestens Ende 2012 vollständig liberalisiert werden. Im Zuge dieser Entwicklung werden derzeit die nationalen Regulierungsrahmen den neuen Bedingungen angepasst, und es wird diskutiert, inwiefern die bisherigen Monopolanbieter (auch) zukünftig ihren...