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利用世界投入产出表测算中国货物贸易行业1995-2011年的价值链长度,并采用行业面板数据和系统GMM方法,实证检验服务投入对我国1995-2009年货物贸易行业价值链长度的影响。研究结果表明,1995-2011年,我国货物贸易主要行业价值链长度均在不断增加,但增加较为缓慢;服务投入对于货物贸易行业的全球价值链长度既存在负向压缩作用,也存在正向拉伸作用,且前者的作用大于后者;服务投入对中国货物贸易行业价值链长度的负作用存在行业差异性,对资源和劳动密集型行业的负作用更为明显,对资本和技术密集型行业的负作用相对较弱。
Using the world input-output table to measure the value chain length of China’s goods trade industry from 1995 to 2011, and using panel data and system GMM methods, the paper tests the impact of service inputs on the value chain of China’s goods trade in 1995-2009. The results show that from 1995 to 2011, the value chain of China’s major trade in goods trade is increasing, but the increase is slow. The input of service inputs has both negative effect on the global value chain of goods trade and positive pull And the role of the former is greater than the latter. There is industry difference in the negative effect of service input on the value chain of China’s goods trade industry, and the negative effect on resources and labor-intensive industries is more obvious. For capital and technology-intensive industries The negative effect is relatively weak.