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本文通过计算261种产品和161个国家(地区)的出口复杂度,采用面板GLS、工具变量、GMM估计多种方法,并从不同发展水平的代表性分组国家(地区)层面,实证分析了包括产品内垂直分工在内的多种解释因素对出口复杂度的影响作用。结果发现产品内垂直分工对出口复杂度具有显著的积极作用;研发、公共服务也是影响复杂度的重要因素,固定资本投资结构会影响产品内垂直分工的效率,投资在低端加工领域的外商资本对出口复杂度促进作用不够明显,技术人力的规模与流动性还有待拓展,制度与垂直分工交互变量的影响性跟制度相比有所增强;金砖国家的产品内垂直分工合作层次和业务种类对出口复杂度有较大影响。
In this paper, we calculate the export complexity of 261 products and 161 countries, and adopt panel GLS, instrumental variables and GMM to estimate various methods. And from the representative group country level of different development level, The influence of many kinds of explanatory factors such as vertical division of labor on export complexity. The results show that the vertical division of labor within the product has a significant positive effect on the export complexity. R & D and public service are also important factors affecting the complexity. The fixed capital investment structure will affect the efficiency of vertical division of labor in products. The foreign capital invested in low-end processing The promotion of export complexity is not obvious enough, the scale and liquidity of technical manpower needs to be further expanded, and the influence of the interaction between system and vertical division of labor has been enhanced compared with the system; the level of vertical division of labor and the type of business within the BRICS countries Export complexity has a greater impact.