The aim of this work is analyzing the practical relevance, from a qualitative perspective, of a new methodology which is intended to include firm heterogeneity, as modeled by Melitz (2003), in computable general equilibrium effects. We assess to what extent the inclusion of industries with...

In this article, a model is introduced that has 2 distinguishing features. First, the multidimensional nature of competition in media markets characterized by free access and advertising is acknowledged, through explicit modeling of vertical and horizontal differentiation. Second, the price of...

<i> Interconnessione e competizione nella rete Internet </i> (di Carlo Cambini, Roberto Roson) - ABSTRACT: In this paper, we provide an economic analysis of the market for Internet infrastructure services. Our objective is to survey the rather limited economic literature available on this subject (and,...