Under the regime of Regulation 1/2003 on the implementation of the rules of competition laid down in Articles 101 and 102 TFEU undertakings are obliged to take care by themselves of their compliance with the competition rules. For practical purposes this is also true when it comes to the rules...

We study the pricing decision of firms in the presence of consumer inertia. Inertia can arise from habit formation, brand loyalty, switching costs, or search, and it has important implications for the interpretation of equilibrium outcomes and counterfactual analysis. In particular, consumer...