This paper extends a model of symmetric oligopoly with linear demand and constant long-run marginal costs to include more general forms of demand and examines the effects of non-linearity upon dead-weight welfare losses at the monopoly and oligopoly outcomes.

This paper shows that the adoption of flexible manufacturing techniques by firms leads to a tougher price regime. This need not benefit consumers since the tougher regime deters entry and facilitates segmented market structures.

Complexity science is widely used across the policy spectrum but not in antitrust. This is unfortunate. Complexity science enables a rich understanding of competition beyond the simplistic descriptions of markets and firms proposed by neoclassical models and their contemporary neo-Brandeisian...

Strategic investment is studied in a model where oligopolists take decisions sequentially. First period investment determines second period wealth and output, and this is anticipated correctly by Cournot oligopolists. In our model with linear technology firms invest less as competition...

The capacity investment by a new firm into an established market is explored in a repeated price game. If the entrant expects collusion to prevail upon entry, it may not practice "judo economics" but instead choose to install enough capacity to serve the entire market. This occurs when collusion...

A two-stage game is used in this paper to model a long-run market with spatially separated producers and with multi-period demands: first, firmas simultaneously and independently invest their capacities; second, after capacities are set up in the first stage and made public, firms engage in a...

An oligopoly with spatially dispersed producers and consumers and with multi-period demands is modeled in this paper.

In England and Wales, wholesale electricity is sold in a spot market partly covered by long-term contracts which hedge the spot price. Two dominant conventional generators can raise spot prices to undesirable levels, which is profitable in the absence of contracts. If fully hedged, however, the...