In this paper we compare two policy instruments that can be adopted to curb carbon emissions. The first is a conventional pollution tax. The second is an environmental campaign aiming to influence consumers to switch to a green good. We consider two different scenarios. When consumers are...

We study the effects of integration of asymmetric complements when they are vertically differentiated. While confirming the standard effects of integration, namely the internalization of the double marginalization externality and the reduction of competition, we point out a new positive quality...

We analyse how market competition in a vertically differentiated polluting industry is affected by product variants that comply at different levels with "green" social norms. A green consumption behaviour is considered as a byword of good citizenship. Consumer preferences depend on a combination...

In the spirit of Arrow (1962), we examine, in an oligopoly model with horizontally differentiated products, how much a firm is willing to pay or a process innovation that it would be the only one to use. We show that different measures of competition (number of firms, degree of product...

In many industries it is quite common to observe firms delegating the production of essential inputs to independent ventures jointly established with competing rivals. The diffusion of this arrangement and the favourable stance of competition authorities call for the assessment of the social and...