Abstract

Energy efficiency is the inverse of intensity, but it measures the specific output and efficiency of a process. It depends on changes in industrial processes, consumption practices and technology. After entering in the new millennium, energy efficiency and energy conservation have become an important part for a county to set energy policies. In this context, this paper aims to analyze total energy efficiency and industrial energy efficiency over the period 2000-2006 of Beijing. Using non-parametric methodologies, Malmquist productivity index (MPI) based on Data Envelopment Analysis (DEA), we decompose the productivity index into technical change and technical efficiency components. The results show that the average growth of total energy efficiency in Beijing from 2000 to 2006 is 6.4%, which benefits from technical progress, especially, from technical progress in the secondary industry.

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