School of Economics and Management, East China Jiaotong University, Nanchang, 330013, China.
School of Economics and Trade, Guangdong University of Foreign Studies, Guangzhou, 510006, China.
Environ Sci Pollut Res Int. 2021 Feb;28(6):7390-7403. doi: 10.1007/s11356-020-10947-1. Epub 2020 Oct 8.
How to promote the carbon productivity embodied in trade and regional balanced development has become the focus of attention to combat climate change and improve regional management. Taking the Pan-Yangtze River Delta region for example and based on the input-output model, this paper explored the relationship between inter-industry economic spillover and embodied carbon productivity in trade from 2007 to 2012. Results indicated that the intra-regional multiplier effect presented a slow downward trend during the studied period, while the trend in the inter-regional integration was intensifying. Moreover, the multiplier effect of the lower reaches of the Yangtze River was relatively lower than that of the middle reaches. Owing to the geographical location and industrial structure, the industries in the middle reaches of the Yangtze River were strongly correlated. In addition, the regional multiplier effect was mostly concentrated in industries with high carbon emission intensity. The economic spillovers between regions showed a growing trend from 2007 to 2012, indicating that regional economic integration was further strengthened, and the economic spillovers in the Yangtze River Delta region were significantly higher than those in the middle reaches. Furthermore, from the perspective of embodied carbon productivity in trade, most of Shanghai's carbon productivity to other regions was mostly less than 10,000 Yuan per ton, which means Shanghai had little demand for intermediate products of other regions, and inter-regional trade between Shanghai and other regions brought less total output and more environmental pollution to other regions, while Shanghai obtained more total output through trade. As embodied carbon productivity in trade in Jiangsu and Zhejiang was more than 10,000 Yuan per ton, Jiangsu and Zhejiang had played an important role in realizing the coordinated development of low carbon in the Pan-Yangtze River Delta. In particular, for Anhui and Jiangxi, embodied carbon productivity in the Yangtze River Delta region was relatively low. Therefore, in order to achieve green, coordinated, and high-quality economic development in the Pan-Yangtze River Delta region, Anhui and Jiangxi should not only strengthen regional cooperation with Shanghai, Zhejiang, and Jiangsu, but also they should avoid regional zero-sum game competition in regional climate policy. In other words, for policy-makers in the Pan-Yangtze River Delta, promoting the deep integration of industrial chain and regional coordinated development, and thus, improving carbon productivity during the regional development process, should receive more attention.
如何促进贸易和区域平衡发展所体现的碳生产力，已成为应对气候变化和改善区域管理的关注焦点。本文以泛长三角地区为例，基于投入产出模型，探讨了 2007-2012 年贸易中产业间经济溢出与隐含碳生产力的关系。结果表明，研究期间，区域内乘数效应呈缓慢下降趋势，而区域间融合趋势加剧。此外，长江下游的乘数效应相对较低。由于地理位置和产业结构，长江中游的产业相关性较强。此外，区域乘数效应主要集中在碳排放强度较高的行业。2007-2012 年，区域间经济溢出呈增长趋势，表明区域经济一体化进一步加强，长三角地区经济溢出明显高于中游地区。此外，从贸易隐含碳生产力的角度来看，上海对其他地区的大部分碳生产力都低于 1 万吨/吨，这意味着上海对其他地区的中间产品需求不大，上海与其他地区的区域间贸易给其他地区带来的总产出较少，环境污染较多，而上海通过贸易获得的总产出较多。由于江苏和浙江的贸易隐含碳生产力超过 1 万吨/吨，江苏和浙江在实现泛长三角低碳协调发展方面发挥了重要作用。特别是对于安徽和江西来说，长三角地区的隐含碳生产力相对较低。因此，为了实现泛长三角地区绿色、协调、高质量的经济发展，安徽和江西不仅要加强与上海、浙江和江苏的区域合作，还要避免在区域气候政策中出现区域零和博弈竞争。也就是说，对于泛长三角地区的政策制定者来说，促进产业链的深度融合和区域协调发展，从而提高区域发展过程中的碳生产力，应该得到更多的关注。
