In a differentiated oligopoly market, it is often the case that consumer’s ex post preferences over different product qualities depend upon the state of nature which is not yet observable to the consumers at the time of purchase. One of the most typical examples is a market for durable goods...

This paper considers entry into a market with two incumbents where one prefers and one dislikes entry. Unlike the entrant both incumbents know market demand. One would like to signal high demand, the other low. In separating equilibria incumbents choose full information Nash-equilibrium...

Danish ready-mixed concrete is produced in regional oligopolies. Firms rely on price discrimination through secret discounts. The antitrust authority interprets this as lack of competition and has decided to activate its chief weapon against dormant competition: To make the market more...

This paper studies competition between a small number of suppliers and a single buyer, (or an auction with a small number of bidders and a single seller) when total demand (supply) is uncertain. It is well known that when a small number of suppliers compete in supply functions the service is not...

A framework is developed with which both R&D-subsidies and R&D-cooperatives can be analyzed. It is shown that in most cases providing R&D-subsidies is more effective in promoting private R&D than allowing for an R&D-cooperative. Moreover, considering the implementation of both R&D stimulating...

We characterize the interplay between firms’ decision in terms of product differentiation and the nature of their ensuing market behaviour. We prove the existence of a non-monotone relationship between firms’ decision at the development stage and their intertemporal preferences.

General equilibrium models of oligopolistic competition give rise to relative prices only without determining the price level. It is well known that the choice of a numéraire or, more generally, of a normalization rule converting relative prices into absolute prices entails drastic consequences...

We compare simultaneous versus sequential moves in R&D decisions within an asymmetric R&D/Cournot model with linear demand (for differentiated products), general R&D costs, and spillovers. Simultaneous play and sequential play (with and without a specified leader) can emerge as appropriate...

We show that the fact that farmers in a cooperative individually decide how much to supply to cooperative may serve as a commitment device for credibility (and profitably) gaining market share in competition with a profit maximizing firm.

In this paper we analyze the welfare properties of the set of Drèze equilibria for economies with incomplete markets and firms. The well known fact that a Drèze equilibrium need not be constrained Pareto optimal is often attributed to a lack of coordination between firms. We show that there...