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通过构建理论模型,本文从供给侧角度探究持续产业结构变迁的根本动力。研究发现,部门之间劳动生产率增长速度的差异是导致产业结构持续变迁的根本动力。其一,当部门之间劳动生产率增长速度相同时,经济增长在部门之间一定是平衡的;部门之间的平衡增长意味着短暂的产业结构变迁只能发生在转型动态上。其二,当部门之间存在劳动生产率增长速度差异时,经济增长在部门之间一定是非平衡的;部门之间的非平衡增长意味着持续的产业结构变迁在平衡增长路径上还在继续进行。
By building a theoretical model, this paper explores the fundamental motivation of the continuous industrial structure change from the supply side. The study found that the difference in the growth rate of labor productivity among sectors is the fundamental driving force for the continuous changes in industrial structure. First, when the productivity growth rate among sectors is the same, economic growth must be balanced among sectors. The balanced growth among sectors means that the short-term structural changes in industry can only take place in transition dynamics. Second, when there are differences in the growth rates of labor productivity between sectors, economic growth must be unbalanced among sectors. The unbalanced growth among sectors means that continued changes in industrial structure are continuing on the path of balanced growth.