I study Cournot competition under incomplete information about demand while assuming that market price must be non-negative for all demand realizations. Although this assumption is very natural, it has only rarely been made in the earlier literature. Yet it has important economic consequences:...

This paper investigates how the formation of larger buyers affects a supplier's profits and, by doing so, his incentives to undertake non-contractible activities. We first identify two chan-nels of buyer power, which allows larger buyers to obtain discounts. We subsequently exam-ine the effects...

We provide an extensive and general investigation of the effects on industry performance (profits and social welfare) of exogenously changing the number of firms in a Cournot framework. This amounts to an in-depth exploration of the well-known trade-off between competition and production...

We study the incentives of Cournot oligopolists to acquire and disclose information on a common cost (or demand) parameter. Since information acquisition is such that firms may fail to acquire information, firms can credibly conceal unfavorable news while disclosing favorable news. This paper...

How does the choice to regulate a market take place? And how does regulation influence market outcome? We argue that to explicitly model the simultaneity between these two issues makes a qualitative difference in the analysis of the role of regulation, and empirically test our model in the U.S....

Investments in Generating Capacities between a monopolist and two competing firms are compared where the firms invest in their capacity and fix the retail price while electricity demand is uncertain. A unit price auction determines the wholesale electricity price when the firms compete. They...

This paper examines how unionization structures that differ in the degree of wage centralization affect firms' incentives to increase labor productivity. We distinguish three modes of unionization with increasing degree of centralization: (1) "Decentralization" where wages are determined...

We study tacit collusion in repeated auctions in which bidders can only observe pastwinners and not their bids. We adopt a stringent interpretation of tacit collusion ascollusion without communication about strategies that we model as a symmetryrestriction on repeated game strategies: Strategies...

This paper presents a set of panel data to study the diffusion of retail checkout barcode scanning in ten European countries over the period 1981-1996. Estimates from a standard diffusion model suggest that countries differ most in the long-run diffusion level of barcode scanning and less in...

We analyze differentiated retail industries where shops engage in two-stage competition with respect to opening hours and prices. We explore the effects of consumers' shopping time flexibility by comparing bi-directional consumers with forward- or backward-oriented consumers, who can either...