We use cumulative reaction functions to compare long-run market structures in aggregative oligopoly games. We first compile an IO toolkit for aggregative games. We show strong neutrality properties across market structures. The aggregator stays the same, despite changes in the number of firms...

How does market organization affect quality innovation efforts and social welfare? Three stochastic dynamic market structures considered are monopoly, duopoly, and social planning. Products can be either linearly or nonlinearly substitutable. The introduction of a step function allows richer...

Different structures of lignite mines and power stations, which have appeared on the Polish market as a result of its transformation and the privatisation, were discussed. The attention is focused on the fact that the practice is overtaking the theory because there is lack of models of...

For methods of the profit division in the bilateral monopoly of the mine and the power station sug-gested in the first part of this paper the formulae for lignite price and shares in the joint profit of the mine and the power station are calculated. The proposed profit division contain: the...

We study price competition between firms over public list or posted prices when a fraction of consumers (termed 'bargainers') can subsequently receive discounts with some probability.  Such stochastic discounts are a feature of markets in which some consumers bargain explicitly; of markets in...

We model a player’s uncertainty about other players’ strategy choices as smooth probability distributions over their strategy sets. We call a strategy profile (strictly) robust to strategic uncertainty if it is the limit, as uncertainty vanishes, of some sequence (all sequences) of strategy...

In this paper we study price competition between firms when some consumers attempt tobargain while others buy at the public list or posted prices. Even though bargainers succeed innegotiating discounts off the list prices, their presence dampens competitive pressure in the marketby reducing the...

The present paper investigates the effects of bargaining structures and agendas on the quality differentiation/location in the final-goods market. The framework is a unionized duopoly industry in the context of an unconstrained Hotelling linear city model. The presence of labor union(s) and the...

In this note we reconsider the paper of Brod and Shivakumar (1999), published in the Journal of Industrial Economics, who analyze a two- stage model in which the firms compete in two dimensions and examine the effect of semi-collusion when the non-production activity is R&D. They shed light on...

In the 1950s and 60s, Japanese and US antitrust authorities occassionally used the degree of concentration to regulate industries. Does regulating firms based on their market shares make theoretical sense? We set up a simple duopoly model with stochastic R&D activities to evaluate market share...