The supply function model of the English electricity spot market is extended to include equilibrium in a contract market in the presence of entry threats, both of which have dramatic effects on the determination of equilibrium. The paper presents an analytically tractable model which can be...

The market power of the incumbents means that average pool prices are set by the costs of entry. Reforms which raise entry costs will be proposed and should be resisted. Reforms to capacity payments may have little effect on prices, but could affect system security. The values of Value of Lost...

If a monopolist is selling a commodity to consumers who could, if they chose, produce a close substitute, but only after incurring heavy capital investment (we have oil in mind), then the monopolist's optimal limit pricing strategy may involve randomizing prices even though stable prices would...

The paper assesses the distributional and efficiency/disincentive aspects of the Greek indirect tax system, which provides 60 percent of total tax revenue. The marginal welfare costs of broad commodity groups were computed to identify welfare-improving directions of reform. The disincentive...

The paper assesses the distributional and efficiency/disincentive aspects of the Greek indirect tax system, which provides 60% of total tax revenue. The marginal welfare costs of broad commodity groups were computed to identify welfare-improving directions of reform. The disincentive effects...