This paper applies a model of market power measurement under product differentiation to the case of the gasoline market in California, using data for the period 1983-1989. Our results show that there is a considerable degree of product differentiation among major brands. This allows firms to exercise local market power over their own specific products, but there are also signals of an important...

The Compute Power Market (CPM) is a market-based resource management and job scheduling system for grid computing on Internet-wide computational resources, particularly low-end personal computing devices. It transforms the metacomputing environment into a computational market wherein one can solve problems by renting computational power, storage, and special services from idle resources (comput...

This paper reports on an experimental study of the relationship between job capacity, job concentration, and market power in the context of an agent-based computational model of a labor market. Job capacity is measured by the ratio of potential job openings to potential work offers, and job concentration is measured by the ratio of work suppliers to employers. For each experimental treatment, w...

The degree of market power (more precisely, the potential for market power obtained from a market concentration indicator such as HHI) increases as system stress increases. This paper illustrates the effect of system loading on the reactive power HHI for various locations. The paper also illustrates the use of sensitivity formulas to come up with measures intended to improve (reduce) the overal...

We ask under what conditions transmission contracts increase or mitigate market power. We show that the allocation process of transmission rights is crucial. In an efficiently arbitraged uniform price auction generators will only obtain contracts that mitigate their market power. However, if generators inherit transmission contracts or buy them in a ‘pay-as-bid’ auction, then these contracts ca...

This research aims to develop some suitable metrics for the measurement of market power in the online retailing business. While it is obvious that market power exists in the online retailing business, especially among the market leaders, the factors that drive that market power have been considerably less analyzed. One of the main reasons why existing research in this area has concentrated on c...

To date, a number of electricity markets have deregulated, relying on market forces to set prices. The results thus far are mixed. Therefore, policy makers must rely on ex ante analyses of the market power potential for generation owners. Recently, policy makers in the Wisconsin and Upper Michigan (WUMS) electricity market have contemplated deregulation. In this paper, we examine the ability of...

The paper studies on the core philosophy and algorithm of the designing economic mechanisms theory, a new algorithm of designing incentive compatible power market mechanisms is proposed, a generation side power market mechanism model which has features of inventive compatibility, informationally efficient and decentralized decision is constructed. The power market based on the designing economi...

This paper analyses the impact of power market structure on the pass-through rate (PTR) of CO2 emissions trading costs on electricity prices from a theoretical point of view, including graphical illustrations and mathematical proofs. Market structure refers in particular to the number of firms active in the market as well as to the shape of the power demand and supply curves. In addition, it an...

Allaz and Vila made the seminal contribution that forward contracts mitigate market power on the spot market. This result is widely quoted and elaborated in studies of restructured power markets, where generators can potentially exploit the special characteristics of this industry in order to extract higher prices. Allaz-Vila established their result under the assumption that the production cap...