This paper assesses empirically the relationship between marketing expenditures and sales in the premium car segment in Germany. We employ a new data-set which contains model-specific data on sales (i.e. registrations), restyling activities and marketing expenditures at a monthly basis for the...

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...

This paper quantifies the degree of market power in the German wholesale electricity market. A fundamental model is used to derive competitive marginal cost estimators which are compared with observed electricity prices. Marginal costs are calculated focusing on market fundamentals such as plant...

This paper studies the long-run effect of the 2002 changeover on restaurant prices in Germany. German restaurant prices increased significantly when the euro was introduced as a new currency but rather than returning to their re-changeover trend, restaurant prices appear to have stabilized on a...

Internet experiments are a new and convenient way for reaching a large subject pool. Yet, providing incentives to subjects can be a tricky design issue. One cost effective and simple method is the publication of a high score (as in computer games). We test whether a high score provides adequate...