浙江省全要素碳生产率测度与收敛性分析*

Measurement and Convergence Analysis of Total Factor Carbon Productivityin Zhejiang Province

摘要:

运用SBM方向性距离函数和Global Malmquist-Luenberger(GML)指数,测算了2007-2021年浙江省11个地市全要素碳生产率,并对其收敛性进行了检验。研究发现：整体上浙江省全要素碳生产率年均增长3.5%并且呈波动上升趋势,技术效率年均增长只有0.1%,技术进步年均增长3.9%,技术进步是浙江碳生产率增长的主要源泉；浙江省碳生产率没有呈现出显著的σ收敛,但具有绝对β收敛和条件β收敛,浙西南和浙东北地区呈现异质性的收敛特征；技术进步和产业结构对碳生产率的增长影响为正,而能源结构对其的影响为负。为推进绿色发展、提升碳生产率水平,浙江应大力发展数字经济、调整产业结构、鼓励技术创新、改善能源消费结构。

Abstract:

Applying Slack-based directional distance function and Global Malmquist-Luenberger productivity index,this paper measures total factor carbon productivities of 11 cities in Zhejiang province from 2007 to 2021,and examines the convergence across cities. This paper findes the tendency of total factor carbon productivity is increasing on the whole,and the average annual growth rate of total factor carbon productivity is 3.5%. While the average annual growth rate of technology change is 3.9%, which is the leading contributor to the increase,but the rate of technical efficiency is only 0.1%.Moreover,there is no significant σ convergence across the cities in Zhejiang province,but there exists the absolute β convergence and the conditional β convergence.There is heterogeneity in convergence characteristics between Southwest and northeast of Zhejiang. The finding also shows the technological progress and the industrial structure have a positive impact on carbon productivity growth, while the energy structure has a negative impact on it. Therefore, developing digital economy,adjusting the industrial structure,promoting technological innovation as well as improving the energy consumption structure are the key points to improve carbon productivities in Zhejiang province.