An empirical analysis of energy efficiency in China's iron and steel sector
An empirical analysis of energy efficiency in China's iron and steel sector
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DOI：
10.1016/j.energy.2007.07.007
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发表时间：
2007-12
期刊：
影响因子：
9
通讯作者：
Yi-Ming Wei;Hua Liao;Ying Fan
中科院分区：
文献类型：
--
作者：
Yi-Ming Wei;Hua Liao;Ying Fan
本文利用Malmquist指数分解方法，对中国钢铁行业1994年-2003年的能源效率进行了实证研究。使用省级面板数据，允许各种能源投入和产品产出。能源效率的提高可以分解为两个组成部分：技术变革(生产前沿转移效应)和技术效率变革(追赶效应)。我们的实证结果表明，1994年至2003年，中国钢铁行业的能源效率提高了60%，这主要归功于技术进步，而不是技术效率的提高。在此期间，各省钢铁行业的能效差距有所拉大。然而，在上海、辽宁、北京和湖北等一些地区，国有钢铁厂的能效已经缓慢提高。然而，这四个地区的技术效率大幅下降。中国最大的两个民营钢铁基地(河北和江苏)的能效显著提高。
Using Malmquist Index Decomposition, this paper investigates energy efficiency of China's iron and steel sector during the period 1994–2003. Provincial panel data is employed, allowing various energy inputs and product outputs. The energy efficiency improvement is decomposed into two components: technical change (production frontier shifting effect) and technical efficiency change (catching up effect) over time. Our empirical results indicate that the energy efficiency in China's iron and steel sector increased by 60% between 1994 and 2003, which is mainly attributable to technical progress rather than technical efficiency improvement. The energy efficiency gaps among provincial iron and steel sectors during this period have widened. However, energy efficiency of iron and steel plants owned by the state has slowly improved in some regions, such as Shanghai, Liaoning, Beijing and Hubei. Nevertheless, technical efficiency in these four regions has decreased considerably. Energy efficiency in China's two largest private-own iron and steel bases (Heibei and Jiangsu) improved significantly.