In his book on “Market Microstructure” Spulber presented some strange results with respect to the impact of the substitutability parameter in an intermediation model with differentiated products and inputs. Intuitively, effects in the product and the input market should be similar: if firms...

In the European Union the commission has the primary right to decide about industrial policy. Note that this includes the possibility to allow actions of member countries as long as these are not in conflict with the interest of the EU. This paper deals with the question whether such an...