Cartel detection is one of the most basic and most complicated tasks of competition authorities. In recent years, however, variance filters have provided a fairly simple tool for rejecting the existence of price-fixing, with the added advantage that the methodology requires only a low volume of...

The increase in international petroleum prices generated by Russia’s invasion of Ukraine is one of the main causes of inflation, especially in Europe. In order to contain it, 13 European countries have introduced tax reductions or subsidies so as to reduce the final diesel and gasoline 95...

The increase in international petroleum prices generated by Russia’s invasion of Ukraine is one of the main causes of inflation, especially in Europe. In order to contain it, 13 European countries have introduced tax reductions or subsidies so as to reduce the final diesel and gasoline 95...

Cartel detection is one of the most basic and most complicated tasks of competition authorities. In recent years, however, variance filters have provided a fairly simple tool for rejecting the existence of price-fixing, with the added advantage that the methodology requires only a low volume of...

Relevant market definition is still a key element of economic analysis of competition in the gasoline market. It is particularly difficult to handle when competition is local and market power is geographically constrained like is the case in the gasoline market. We analyse how the application of...