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以Hummels et al.(2001)的测算方法为基础,利用OECD提供的我国1995-2005年的投入产出表,测算了我国制造业的国际垂直化水平,并用行业面板数据考察了垂直专业分工对技术进步的影响。研究结果表明:垂直专业化通过专业化分工、中间产品贸易、人才流动和产业链的上下游关联效应,对制造业技术进步有明显的促进作用。分组回归结果表明:垂直专业化对技术进步的影响在技术水平、行业集中度与出口依存度等行业分组指标下存在明显的区别。
Based on the calculation method of Hummels et al. (2001), using the input-output table of China from 1995 to 2005 provided by the OECD, the international verticalization of manufacturing industry in China was measured and the vertical professional division of labor Impact of technological progress. The results show that vertical specialization can obviously promote the technological progress of manufacturing industry through specialized division of labor, trade in intermediate products, human resources flow and the upstream and downstream correlation effects of the industrial chain. The results of the group regression show that the impact of vertical specialization on technological progress is obviously different under the industry grouping indicators such as technical level, industry concentration and export dependence.