In many markets, such as education, health care and public utilities, firms are often profit-constrained either due to regulation or because they have non-profit status. At the same time such firms might have altruistic concerns towards consumers. In this paper we study semi-altruistic firms’...

The focus of the present work is to study the impact of the second-hand market the collusivebehavior. I analyze firms' preferences for having an active second-hand market and whetherpolicies (i.e. leasing policy, buy-back policy and warranty policy) that affect the functioningof the second-hand...

We study the effect of competition on quality in markets such as health care, long-term care and education, when providers choose both prices and quality in a setting of spatial competition. We offer a novel mechanism whereby competition leads to lower quality. This mechanism relies on two key...

In this paper, we consider a duopoly model where two firms sell two differentiated products and there is a network externality between either carriers or machines. We derive the equilibria of these games and illustrate the effects of a change in quality on the equilibrium quantity of each good....

We consider cannibalization in a duopoly model in which firms with diffrent costs supply two vertically differentiated products in the same market. We find that an increase in the difference in quality between the two goods or a decrease in the marginal cost of the high-quality goods leads to...

In this paper, we consider and propose a new duopoly model of cannibalization in which firms produce and sell two vertically differentiated products in the same market. We show that each firm produces the high-quality good more (less) than the low-quality good if the upper limit of taste of...

In a real oligopoly, firms often supply multiple products differentiated by quality in the same market. To examine why they do so, we consider a duopoly model in which firms can choose between supplying two vertically differentiated products and selling a single product in the same market. By...

The purpose of this paper is to analyse the question, whether copyright infringement of digital products like software commonly labelled as piracy impedes innovation. We find the answer depends on the nature of piracy i.e. whether it is end-users or commercial piracy. For end user piracy,...

In this paper, we study how the presence of a news aggregator affects competition among (horizontally differentiated) newspapers in the Internet. For this purpose, we build a model of multiple issues which allows each newspaper to choose quality on each issue. Our model provides a micro...

This paper focuses on oligopolistic markets in which indivisible goods are sold by multiproduct firms to a continuum of homogeneous buyers, with measure normalized to one, who have preferences over bundles of products. Our analysis contributes to the literature on private, delegated agency games...