Abstract: Intra-product specialization is an important element which affects value chains, this paper calculates intermediate products’ intra-product specialization spillover effect under the condition of different value chains gap, includes semi-manufactured goods and parts, using panel data and quantile regression approach. We find intermediate products’ intra-product specialization has a vital spillover effect to value chains level upgrading, accompanied by conditional distribution diversification of value chains gap, this variable trend has an inverted U-shaped relation, and this effect has heterogeneity to grouping countries based on different development level.

摘要： 产品内分工是影响价值链的重要因素，本文运用面板固定效应和分位数回归方法，分析了不同价值链差距层次下，中间品（包括半成品和零部件）产品内分工的溢出效应。研究表明，随着价值链水平所处条件分布的位置变化，中间品产品内分工对提升价值链具有重要的溢出作用，并且这种溢出效应的变化趋势呈倒U形，另外这种作用对不同发展水平的分组国家也具有异质性。