This paper shows that generators exercised increasing market power in the England and Wales wholesale electricity market in the second half of the 1990s despite declining market concentration. It examines whether this was consistent with static, non-cooperative oligopoly models, which are widely...

This paper analyses the economics of long-term gas contracts under changing institutional conditions, mainly gas sector liberalisation. The paper is motivated by the increasingly tense debate in continental Europe, UK and the US on the security of long-term gas supply. We discuss the main issues...

In the recent past, the concentration of seed maize processing and marketing in Kenya has raised serious public concerns. The inability of this industry to ensure affordable prices of certified seed maize for the farming community has led policy makers to question its market behaviour. In spite...

This paper reviews the basic antitrust standards for the supermarket industry including definition of product and geographic markets and the exercise of coordinated and unilateral market power. It surveys the structure-conduct-performance and the New Empirical Industrial Organization literature...

The ready-to-eat cereal industry is characterized by high concentration, high price-cost margins, large advertising to sales ratios, and numerous introductions of new products. Previous researchers have concluded that the ready-to-eat cereal industry is a classic example of an industry with...

This study uses an agent-based computational labor market framework to undertake a systematic experimental investigation of the relationship between job capacity, job concentration, and market power. Job capacity is measured by the ratio of total potential job openings to total potential work...

This study reports experimental market power and efficiency outcomes for a computational wholesale electricity market operating in the short run under systematically varied concentration and capacity conditions. The pricing of electricity is determined by means of a clearinghouse double auction...

The three papers in this dissertation all deal with new challenges for energy policy.The first paper deals with mitigation of market power in deregulated wholesaleelectricity markets, while the second and third papers deal with reduction ofgreenhouse gas emissions.The first paper experimentally...

This paper uses representative firm level panel data of 1,701 Bulgarian and 2,047 Romanian manufacturing firms to estimate price-cost margins and to analyze how these are affected by privatization and increased competitive pressure. The estimation method used, which is based on Roeger (1995),...

The apparent increase in market concentration and vertical integration in the Indonesiancrude palm oil (CPO) industry has led to concerns about the presence of market power.For the Indonesian CPO industry, such concerns attract more attention because of theimportance of this sector to the...