International Trade and CO2 Emissions:A Chaining SDA Approachin China-US Trade

• 作 者: Zhonghua ZHANG Yuhuan ZHAO Song WANG YaLIU
• 机 构: Center for Energy and Environmental Policy Research,Beijing Institute of Technology, Beijing 100081
• 出 处: 全国高校国际贸易学科协作组
• 发表日期: 2014年11期
• 关键词: Multi-regional input-output model Chaining structural decomposition analysis CO2

　　With the increasing global concern directed on carbon reduction, CO2 emissions embodied in trade has attracted broad attention in related studies.This paper conducts in-depth inquiries into the driving forces for changes in CO2 emissions embodied in China-US trade during 1995-2009.Different from existing studies, this paper is based on a multi-regional input-output model where both domestic and foreign sourced emissions are considered;and the driving forces are investigated with chaining structural decomposition analysis at a more detailed factor level, thus short-term fluctuations and important factors can be detected.The results show that, CO2emissions embodied in China-US trade have experienced a fast increasing during 1995-2009, and China was the net carbon exporter.In respect to changes in embodied emissions of exports from both sides, in general, the increasing total volume of exports has the largest positiveeffects;while the negative effects mainly came from the decreasing energy intensity.The alteration of intermediate input structure has opposite effects on China and the US which reflected the downward moving of Chinese enterprises in the global value chains in contrast of their US counterparts.The effects from the rest driving forces, though much smaller in absolute value, did indicate aspects that need to be strengthened by both countries in terms of carbon reduction.Policy implications from the numerical results obtained are discussed finally.