电力市场中市场力的监测:一个综述  

The Monitoring of Market Power in Wholesale Electricity Markets: A Survey

作　　者：杜立民[1] 史晋川[1] 

机构地区：[1]浙江大学经济学系,浙江杭州310027

出　　处：《浙江大学学报（人文社会科学版）》2007年第4期153-162,共10页Journal of Zhejiang University:Humanities and Social Sciences

摘　　要：发电厂商的市场力是各国电力市场化改革过程中关注的焦点之一,市场力的监测更是一项艰巨而又意义重大的研究课题。随着国外电力市场的进一步发展和完善,这一领域的研究文献大量涌现,主要涉及结构性指标、模拟模型、囤留分析等。我国的电力市场化改革虽然已进行了多年,但对发电厂商的市场力仍然没有很好的监测方法,相关理论研究也有待进一步展开。对这一领域的最新研究成果进行较为全面的综述,对我国电力市场的发展和完善将起到一定的积极作用。A great number of countries＇ electricity industries have been deregulated since 1990s, and more and more countries are going to do that. Electricity industry is one of the most complex systems in the world because of its special physical characteristics. The electricity industry has been vertically integrated in the past 100 years, that is, generation, transmission and distribution are all controlled by regulated public utilities. With the development of new electricity technology, especially the invention of CCGT, deregulation of electricity industry becomes feasible. After deregulation, generation and transmission are separated. The generators are required to bid in the wholesale electricity market for their production while the transmission networks are still controlled by regulated independent system operator because of its network effect. After the deregulation, the electricity price continues to stay unexpectedly high because of generators＇ market power. In fact, the generators＇ market power has become one of the most important problems in the deregulated electricity industries. As is known to all, the final result of the generators＇ market power is high price, which is not necessarily the result of market power. Sometimes the high price is probably due to high demand and low supply, that is the scarcity rents. The generators＇ market power should be suppressed while scarcity rent is necessary to the generators, by which the generators can recover their large scale fixed costs, though the scarcity rent should be protected. How to differentiate the market power from scarcity rent has become a challenging but meaningful work. Though it is hard work to monitor the generators＇ market power because of the complexity of electricity system, there are still plenty of achievements in this field. In this paper, we review the literature on the monitoring of generators＇ market power in wholesale electricity market by monitoring. In traditional industrial economics, market concentration index is the

关 键 词：电力改革 批发竞争 市场力 监测 

分 类 号：F426.61[经济管理—产业经济]