本文运用1981—2005年的投入产出时间序列数据,采用超越对数生产成本函数估计了我国制造业20个部门能源、非能源、资本以及劳动的份额方程,对我国制造业20个部门的技术变化、要素替代以及贸易和能源强度之间的关系作了实证研究。计量检验的结果表明,技术变化、要素替代、贸易、一次能源结构和部门结构变化是引起能源强度变化的重要因素。
This paper uses input-output table time series of 1981-2005 to estimate a system of share equations for energy, capital, labor, trade and materials in China's industrial sectors. The translog cost function is adopted taking into account biased technological change and increasing trade orientation. Results show that factor substitution, technological change, trade, the primary energy structure and structural changes in industries are the main factors determining the energy intensity.