The paper presents a model of a software monopolist who benefits from a lagged network externality arising from consumers' feedback through the so-called bug-fixing effect. That is, the software producer is able to correct errors in the software code detected by previous users, improving her...

Individual moral hazard engendered by health insurance and monopolistic production are both typical phenomena of drug markets. We develop a simple model containing these two elements and evaluate the market equilibrium on the basis of consumer and social welfare. The consumer welfare criterion...

In this paper we study the welfare effect of a monopoly innovation. Unlike many partial equilibrium models carried out in previous studies, general equilibrium models are constructed and analyzed in greater detail. We discover that technical innovation carried out by a monopolist could...

This paper studies revenue-maximizing mechanisms for a monopolist who expects her buyers to resell in a secondary market. We consider two modes of resale: the first is to a third party who does not participate in the primary market; the second is inter-bidders resale, where the winner in the...

This paper investigates strategic interactions between a private highway operator anda private transit operator who uses the same highway for its services. Heterogeneity oftravellers is taken into account by considering a continuous distribution of values of time.Demand elasticity arises from...

This paper investigates the effect of credibility of environmental policies on environmental innovation and welfare. When the government precommits to an emission tax, the monopolist's abatement effort is lower than if the environmental policy is at the government's discretion. Time consistent...

This paper analyzes optimizing decisions of a monopolist under uncertainty. The aspiration model directly accounts for asymmetric risk preferences with respect to downside risk. The optimal output (price) of a risk-averse monopolist facing marginal cost uncertainty will not exceed that of his...

Die Wirkung des Wettbewerbs von Medienunternehmen auf das Marktergebnis ist in einigen einschlägigen Modellen durchaus ambivalent. So haben - erstens - monopolistische Anbieter unter Umständen höhere Anreize, ein breitgefächertes Angebot zu erstellen. Zweitens ist das typische Kalkül der...