能量强度
经济
煤
需求价格弹性
电
高效能源利用
货币经济学
宏观经济学
自然资源经济学
微观经济学
工程类
电气工程
废物管理
作者
Leiming Hang,TU Mei-zeng
出处
期刊:Energy Policy
[Elsevier]
日期:2007-05-01
卷期号:35 (5): 2978-2988
被引量:319
标识
DOI:10.1016/j.enpol.2006.10.022
摘要
In this paper, we present a review of the deregulation of energy prices in China between 1985 and 2004 and assess the impacts of changes in energy prices on aggregate energy intensity and coal/oil/electricity intensity. We used time series data to provide estimates of energy price elasticities. Empirical results showed that: (1) The own-price elasticities of coal, oil, and aggregate energy were negative in periods both before and after 1995, implying that higher relative prices of different energy types lead to the decrease in coal, oil, and aggregate energy intensities. However, the positive own-price elasticity of electricity after 1995 probably indicates that the price effect was weaker than other factors such as income effect and population effect. (2) The impacts of energy prices were asymmetric over time. (3) Sectoral adjustment also drove the decrease in aggregate energy intensity. Although raising energy prices to boost efficiency of energy use seems to be an effective policy tool, other policy implications concerned with energy prices, such as energy supply security and fuel poverty, must also be considered.
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