School of Political Science and International Relations, Tongji University, Shanghai, People's Republic of China.
School of Social and Public Administration, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, People's Republic of China.
Environ Sci Pollut Res Int. 2022 Nov;29(54):82030-82044. doi: 10.1007/s11356-022-21500-7. Epub 2022 Jun 24.
Environmental problems caused by carbon emissions have negative impacts on human life and society. It is therefore important to identify potential approaches to carbon emission reduction. In this study, we analyze the impact fiscal expenditure on science and technology has on carbon emissions using a panel dataset from 2007 to 2016 at Chinese provincial levels. An instrumental variable approach is employed to address the potential endogeneity of fiscal expenditure. Our results show that fiscal expenditure on science and technology has a significant and negative effect on carbon emissions by improving green innovation, economic structure upgrade, energy consumption structure, and energy efficiency. A one hundred RMB yuan increase in fiscal expenditure on science and technology would lower carbon emissions by 0.654 tons. Heterogeneity analysis reveals that the carbon reduction effects of fiscal expenditure on science and technology are larger in regions where internet coverage and the share of industry in the economy are high. Our results highlight the significant role of fiscal expenditure on science and technology in carbon reduction.
碳排放所导致的环境问题对人类生活和社会造成了负面影响。因此,识别潜在的减排方法至关重要。在本研究中,我们利用中国省级层面 2007 年至 2016 年的面板数据集,分析了财政科技支出对碳排放的影响。我们采用工具变量法来解决财政支出可能存在的内生性问题。研究结果表明,财政科技支出通过提高绿色创新水平、促进经济结构升级、优化能源消费结构和提高能源效率,对碳排放产生了显著的负向影响。财政科技支出每增加 100 元人民币,碳排放将减少 0.654 吨。异质性分析表明,在互联网普及率和产业在经济中占比高的地区,财政科技支出的减排效果更大。我们的研究结果突出了财政科技支出在减排方面的重要作用。