This paper empirically investigates the advertising competition in the French broadcast television industry within a … oligopoly competition and identify the shape and magnitude of the feedback loop between TV viewers and advertisers. We also … implement a simple procedure to identify the conduct of firms on the market. We find that the nature of competition in the …

The first paper is co-authored with Sylvain Delalay. We examine the impact of competition between ETFs on measures of … quality measures when competition increases within a group. However, we find that competition has a differential impact on … ETFs according to their size and performance. For large or well-performing ETFs, increased competition improves market …

To increase competition in the retail market for gasoline, Germany's Federal Cartel Office established the so … margins of gas stations. We find that the MTU fostered a more intense competition, with a reduction in price margins of 1 …Mit dem Ziel den Wettbewerb auf dem Benzinmarkt zu erhöhen, wurde die so genannte Markttransparenzstelle für …

This paper investigates the impact of technical progress on the relationship between competition an investment. Using a … model of oligopoly competition with di¤erentiated products where firms invest to reduce their marginal cost of production, I … competition that maximizes investment of the industry. This feature holds also for consumer surplus and Welfare. In the model …