We use a vertical product differentiation model under partial market coverage to study the social welfare optimum and duopoly equilibrium when convex costs of quality provision are either fixed or variable in terms of production. We show that, under fixed costs, at the social welfare optimum...

A three-stage game including investments, environmental quality provision and price competition is developed to study the impact of green technology investment (ecolabeling), in a duopoly model of vertical product differentiation. The firms’ incentives to invest in green technologies depend on...

This paper studies optimal forest policies in an overlapping generations forest economy with one-sided altruism, where timber and monetary bequests can be made across generations and forest amenities are a public good. We extend the existing economics literature by demonstrating that timber...