地域内所得格差と人口移動 : 中国江蘇省の事例

概要

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This paper discusses the population distribution in a region that needs to solve regional income disparity problems. The targeted region was the Jiangsu Province in China where the intra regional income disparity (city level and prefecture level) shows expansion with recent economic growth. First, the population (population distribution) necessary for regional income disparity to completely disappear under very simple assumptions was estimated. The ' desirable' population was named the " convergence population" . Differences in the real (estimated) population and the convergence population were compared, and the degree of the solution for income disparity was verified. Consequentially, population cannot be absorbed sufficiently in rich regions, and income disparity is far from being solved. On the other hand, it is possible to think of a population movement plan for the future by estimating the convergence population. The population and accompanying income disparity were estimated in several projections by combining the registered population with the convergence population. In this estimation, a larger adjustment rate produced a greater decrease in the income disparity. Although it is difficult to estimate the regional population including population movement, we hope such discussions will become a concern for policymakers.JEL Classification: O15, O18, O53, R12, R23