We study how the supply of environmentalism, which is defined by psychic benefits (costs) associated with the purchase of high-environmental (low-environmental) qualities, affects the way firms choose their prices and products and the ensuing consequences for the global level of pollution....

We prove that a sufficient condition for the core existence in a n-firm vertically differentiated market is that the qualities of firms' products are equispaced along the quality spectrum. This result contributes to see that a fully collusive agreement among firms in such markets is more easily...

This paper studies the incentives of firms selling vertically differentiated products to merge. To this aim, we introduce a three-stage game in which, at the first stage, three independent firms can decide to merge with their competitors via a sequential game of coalition formation and, at the...

We consider how two groups of regions, which differ in productivity and public good endowments, compete in tax and public goods to attract or reject migrants. In our framework the less productive regions receive public transfers which increase their panoply of public goods. We find that,...

This paper studies the incentives for firms competing in vertically differentiated markets to sign binding collusive agreements, as in the case of mergers and alliances. Empirical investigations show that firms involved in mergers and acquisitions revise prices and qualities as to maximize their...

In this paper, we tackle the dilemma of pruning versus proliferation in a vertically differentiated oligopoly under the assumption that some firms collude and control both the range of variants for sale and their corresponding prices, likewise a multi-product firm. We analyse whether pruning...