Income polarization and industry concentration (especially in sectors where price competition is supposed to be stiffer) are both generally deemed to be higher in the United States than in the European Union. In this note we provide an interpretation of this evidence by establishing a...

Income distribution affects market demand and its elasticity, and, as a consequence, the optimal behaviour of firms and market equilibrium. This paper focuses on the effects of income polarization, and presents a model where - for any unimodal density function describing income distribution of...

We study the optimal manipulation rules of a public firm’s objective function in a mixed oligopoly with imperfect product substitutability. We start with a baseline duopoly model and compare the solutions under quantity and price competition, and the way they are affected by product...

In this paper we extend the analysis of the standard model of spatial discrimination with quantity competition along the linear city to the case in which the unit transportation cost is greater than one. We show that in such a case the unique subgame perfect Nash equilibrium in locations is a...

We introduce non-homothetic preferences in the Dixit-Stiglitz model of monopolistic competition, and enquire about the effects of a change in income dispersion on the firms' optimal decisions and market equilibrium. Income dispersion, modeled as a mean preserving spread, is shown to affect only...

We analyze the effects of income concentration and income dispersion on market demand and its elasticity. We show that, following an increase in income concentration towards the middle (measured by variations in mean preserving spread), the increase in demand faced by firms which serve at the...