期刊
JOURNAL OF CLEANER PRODUCTION
卷 229, 期 -, 页码 501-512出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jclepro.2019.04.316
关键词
Smart city policy; Energy efficiency; Difference-in-Differences; Heterogeneity technology; DEA
资金
- National Key R&D Program of China [2018YFC0213600]
- National Natural Science Foundation of China [71822402, 91746112, 41571524, 71532013, 71573251]
- Research Center on Low-carbon Economy for Guangzhou Region
- National Social Science Foundation of China [14ZDB144, 17ZDA081]
This paper investigates the effect of the implementation of smart city policy (SCP) on energy efficiency (EE) in China. For this purpose, we have developed a non-convex metafrontier data envelopment analysis (DEA) approach to measure EE, and empirically examine the impacts of SCP on China's EE using Difference-in-Differences (DID) analysis, using a dataset of 251 cities between 2003 and 2016. Results show that there exists significant regional heterogeneity across cities, with the SCP exerting a significant positive effect on EE, indicating that the SCP can effectively improve EE during the study period. These findings are robust to different sub-sample, energy efficiency alternative measures, estimation strategies, and Baidu Search Index. Based on empirical results, the implications of SCP are outlined. (C) 2019 Elsevier Ltd. All rights reserved.
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