Regional electric power demand elasticities of Japan's industrial and commercial sectors
Regional electric power demand elasticities of Japan's industrial and commercial sectors
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DOI：
10.1016/j.enpol.2009.05.045
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发表时间：
2009-11
期刊：
影响因子：
9
通讯作者：
Nobuhiro Hosoe;Shu-ichi Akiyama
中科院分区：
文献类型：
--
作者：
Nobuhiro Hosoe;Shu-ichi Akiyama
在评估和审查电力市场监管改革时，价格弹性是表征市场的最重要参数之一。然而，日本很少评估价格弹性；相反，在没有适当检查这种先验假设的经验有效性的情况下，它被假设为小至 0.1 或 0。我们估计了九个地区的区域电力需求函数，以量化弹性，发现短期价格弹性为0.09-0.30，长期价格弹性为0.12-0.56。我们的估算结果的区域间比较表明，农村地区的价格弹性大于城市地区。例如，0.1 的小弹性的流行假设可能适合研究日本的总电力需求，但不适用于关注各个地区的电力需求函数。此外，本研究无法在统计上支持关于较小弹性值（例如 0.01 和 0）的假设。
In the assessment and review of regulatory reforms in the electric power market, price elasticity is one of the most important parameters that characterize the market. However, price elasticity has seldom been estimated in Japan; instead, it has been assumed to be as small as 0.1 or 0 without proper examination of the empirical validity of such a priori assumptions. We estimated the regional power demand functions for nine regions, in order to quantify the elasticity, and found the short-run price elasticity to be 0.09–0.30 and the long-run price elasticity to be 0.12–0.56. Inter-regional comparison of our estimation results suggests that price elasticity in rural regions is larger than that in urban regions. Popular assumptions of small elasticity of 0.1, for example, could be suitable for examining Japan's aggregate power demand but not power demand functions that focus on respective regions. Furthermore, assumptions about smaller elasticity values such as 0.01 and 0 could not be supported statistically by this study.