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On the evaluation of market power and market dominance-The Nordic electricity market

机译：关于市场力量和市场主导地位的评估-北欧电力市场

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摘要

This paper studies different concentration and dominance measures using structural indexes used to initially screen the competitive situation in a market. The Nordic and Swedish electricity markets are used as the empirical cases. Market concentration issues in the Nordic electricity market in general and in Sweden in particular have been, at least in initial screenings, approached by the Herfindahl-Hirsch-man Index (HHI). This article uses an alternative measure to HHI, which is based on market shares of the two largest firms in the market. The results shows that only the Swedish wholesale market has a firm that can be regarded as dominant, but only during very short periods. The results from a hypothetical merger between the second and third largest company in the Swedish wholesale market shows that when the dominant position of the largest firm is reduced, by increasing the size of the second largest firm, the threshold value indicates that competition actually will increase (contradicting to the HHI).
机译：本文使用用于初步筛选市场竞争状况的结构性指标研究不同的集中度和优势度措施。以北欧和瑞典的电力市场为例。至少在最初的筛选中，北欧电力市场（尤其是瑞典）的市场集中度问题已通过赫芬达尔·赫希曼指数（HHI）进行了研究。本文使用HHI的替代方法，该方法基于市场上两个最大公司的市场份额。结果表明，只有瑞典批发市场拥有一家可以被视为主导的公司，但仅在非常短的时间内。瑞典批发市场中第二和第三大公司之间的假想合并结果表明，如果最大的公司的主导地位降低，则通过增加第二大公司的规模，阈值表明竞争实际上将加剧（与HHI相反）。

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  • 来源
    《Energy Policy》 |2009年第8期|3235-3241|共7页
  • 作者

    Stefan Hellmer; Linda Warell;

  • 作者单位

    School of Management, Blekinge Institute of Technology, PO-Box 520, SE-372 25 Ronneby, Sweden;

    Economics Department, Lulea University of Technology, SE-971 87 Lulea, Sweden;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    market dominance; electricity market; herfindahl-hirschman index;

    机译：市场支配地位;电力市场;赫芬达尔·希尔施曼指数;

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