In this paper we consider a model of oligopolistic competition where firms make a two-dimensional product line decision. They choose a location in style space, thus, inducing horizontal differentiation, and produce different qualities (a product line) of a given good (vertical differentiation),...

The policy of official multilingualism is one of the most important and fundamental principles of the Union. However, a large number of official languages imposes substantial financial, communication and legal costs. We address the merits of extensive multilingualism and formulate an analytical...

We discuss the welfare effects of bundling two products offered by two symmetric firms. We first show that, in terms of welfare, a monopoly does better than a duopoly in which each firm sell its good and that a monopoly selling the bundle does better than if it sells the bundle and the two goods...

The debate about whether the arts should be supported or not is far from being recent, and most governments support the arts in one way or the other. The literature considers several arguments in favor of such interventions. Education may seem as an action which could, in the long run, lead to...

The anomaly is concerned with the observation that in multiple-item auctions of identical ob- jects, prices tend to decline over time. We show that in the case of wine auctions which have been analyzed frequently, the anomaly is likely to be caused by the the fact that most bids are entered by...

We analyze the voting behavior and ratings of judges in a popular song contest held every year in Europe. The dataset makes it possible to analyze the determinants of success, and gives a rare opportunity to run a direct test of vote trading, or logrolling. Though the votes cast may appear as...

We suggest a demand model for foreign languages and estimate demand functions for English, French, German and Spanish in 13 European countries. We show that three variables explain reasonably well the share of people who learn a foreign language: the larger the native population in the country,...

Winemaking is a highly complex technology. It needs inputs over which there is no control (good weather conditions), initial endowments which can hardly be modified (soil, exposure of the slopes), inputs which take 20 to 30 years before producing good quality outputs (vines), manual operations...