关键词: 级差最大化, TOPSIS灰关联投影, 碳效率, 动态评价

Abstract: Focused on traditional carbon efficiency evaluation, more attention is paid to economic output. The paper builds an evaluation indicator system for carbon efficiency from the perspective of economy, welfare, and population. The TOPSIS, grey incidence theory and vector projection method are introduced into evaluation of carbon efficiency. The paper assigns weights to evaluation indicators by using level difference maximization. In order togive weight to time series, this research introduces the time variable, uses time-series arithmetic average operator to integrate two weights into a dynamic evaluation model. An empirical study using the Pan-Yangtze River Delta region as an example shows that there are significant differences in carbon efficiency in the region. The development of the Yangtze River Delta region is not balanced. The research suggests that the strategic advantages and development potentials of the regions should be fully exploited to achieve synergy and achieve a low-carbon economy.

Key words: level difference maximization, TOPSIS grey incidence projection, carbon efficiency, dynamic evaluation