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标题：Do bottlenecks generate market power? An empirical study of the Norwegian Electricity Market
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作者：Frode Steen
期刊名称：Discussion Papers / Norwegian School of Economics and Business Administration
印刷版ISSN：0804-6824
出版年度：2003
卷号：2003
出版社：Bergen
摘要：The present study analyses the potential non -competitive effects of capacity restrictions – socalled bottlenecks - in the Norwegian electricity market. We specify a structural model, and econometrically identifies market power both for the periods with no capacity restrictions on the grid, and the bottleneck periods. We analyse the largest region, Southern Norway that amounts to three fourths of the Norwegian market. The demand side is found to be inelastic. On average we find the market to be competitive. However, the bottleneck period estimates suggest a significant but small short run markup when the grid is capacity restricted. Hence, within the day or hours when bottlenecks appear it seems as the producers exploit some limited market power.
关键词：Bottlenecks, capacity restrictions, market power, empiri cal industry studies