The first essay provides an introduction into the literature of spatial competition models and studies their predictions on the degree of horizontal product differentiation. For this purpose a selection of articles, mainly from the game theoretical strand of the literature, is re-examined in...

This paper develops an original model of product differentiation, to contribute to the debate about theregulation and finance of public television. It goes beyond the conventional analysis in this topic, byshowing the spill-over effects that a public broadcaster can have upon commercial...