期刊
JOURNAL OF CLEANER PRODUCTION
卷 108, 期 -, 页码 944-954出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jclepro.2015.06.054
关键词
SO2 emissions; Panel data; City; Convergence
资金
- National Natural Science Foundation of China [71403015]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry [20152132001]
- Excellent young scholars Research Fund of Beijing Institute of Technology [20142142005]
- Fundamental Research Fund of Beijing Institute of Technology [20132142014]
- Beijing Undergraduate Training Programs for Innovation and Entrepreneurship of Beijing Institute of Technology [BJ14167]
As China's economy has grown rapidly in recent years, China's environmental pollution has become increasingly significant. Among all the traditional pollutants, sulfur dioxide has been monitored by the Chinese government since the 1990s. In this study, China's city-level panel data between 2002 and 2012 are utilized to investigate the existence of convergence in per capita sulfur dioxide emissions across Chinese cities. The conventional estimation methods for beta-convergence suffer from an endogeneity problem and therefore produce biased results. To address the endogeneity problem and allow for dynamics, dynamic panel data estimators are utilized, and the static estimation results are conducted as a robustness check. In addition, the influential factors for convergence are examined. The empirical results indicate that, in the chosen sample period, there were absolute and conditional convergences in per capita sulfur dioxide emissions across cities within the whole nation as well as in the eastern, western and central regions of China. Because per capita Gross Domestic Product and the ratio of secondary industry to Gross Domestic Product are both positively related with per capita sulfur dioxide emissions, higher income per capita and greater importance of the secondary industry would cause the convergence speed to be lower. Therefore, the most straightforward policy implication for the empirical results is that the policies for controlling sulfur dioxide emissions should be regionally differentiated: for cities with high sulfur dioxide emissions per capita, the regulation could be tight, as the emissions would decrease faster because convergence exists; however, for cities with low sulfur dioxide emissions per capita, the target for reducing emissions should not be excessively aggressive. (C) 2015 Elsevier Ltd. All rights reserved.
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