垂直专业化的工资增长效应——理论与中国高技术产业的经验分析

Vertical Specialization and Wage Growth——Theory and Empirical Study on China's High-tech Industry

本文构建一个理论模型探讨了垂直专业化对工资增长的影响,并选取中国高技术产业1995—2008年三位数行业面板数据,运用面板单位根及协整检验、面板FMOLS与DOLS估计方法进行了经验分析。研究表明,垂直专业化有利于行业工资收入水平的提高,但对工资收入的贡献具有显著的行业差异性;行业总收入对工资收入水平的提高有着促进作用,且具有行业差异性。在此基础上,运用动态面板数据GMM方法考察影响垂直专业化的关键因素,分析结果表明外向度、资本密集度、劳动效率、交易费用为我国高技术产业垂直专业化的影响因素,而行业竞争不是影响垂直专业化的决定性因素。

It constructs a theoretical model to discuss the impact on wage growth of vertical specialization. And selecting the panel data from 1995 to 2008 of China＇s three-digit-classification high-tech industry, applying panel unit root and co-integration test, panel FMOLS and DOLS estimation method, it makes an empirical analyses. The results show that the vertical specialization has positive impact on the income level, but the contribution for different industry is different. Moreover, Industry revenue enhances the improvement of income and the improvement is different for different industry. On this basis, using dynamic panel data GMM methods to investigate key factors that affect vertical specialization, the results show that export-oriented degree, capital- intensive degree, labor efficiency and transaction costs have significant positive impact on vertical specialization. However, competition is not the decisive factor.