Interregional productivity differentials : a shift-share decomposition analysis and its application to post-war Japan
Interregional productivity differentials : a shift-share decomposition analysis and its application to post-war Japan
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地区间生产率差异：转移份额分解分析及其在战后日本的应用
DOI：
10.1007/s12076-010-0045-5
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发表时间：
2011
影响因子：
1.8
通讯作者：
M
中科院分区：
文献类型：
--
作者：
Kataoka;M
本研究提出了一个平方就业加权变异系数，通过转移份额分解分析，解决埃斯特万的缺点（注册科学。30：353-364，2000）方差测量。其目的是分析每个转移份额组成部分在解释每个工人的生产率的区域间不平等的作用。将这种不平等分解方法应用于战后日本的县数据，产生了几个实证结果。最有意思的结果之一是，生产力差异部分（可归因于特定区域的部门生产力差异）在整个期间都是一个主要因素，尽管其数值每年都有变化。考虑到生产率差异部分是一个特定部门过去累积投资的指数，其年度变化表明投资区域分配的交替政策变化。这与Kataoka（Rev. Urban Reg. Dev. Stud.17：115-139，2005），战后日本的地区开发政策在以效率为导向的投资分配和以公平为导向的投资分配之间交替，前者意味着在生产率较高的地区增加投资，后者意味着在生产率较低的地区增加投资。此外，从70年代中期开始，各部门生产率差异的解释不平等的发散和各部门就业份额的解释不平等的收敛，意味着地区间劳动分工的推进，这可能是知识密集型活动在东京地区集聚的结果。这种区域间的搬迁被描述为东京单极区域系统的藤田和田渊（注册科学。Urban Econ.27：643-667，1997）。
This study proposes a squared employment-weighted coefficient of variation through a shift-share decomposition analysis, addressing the disadvantage of Esteban’s (Reg. Sci. Urban Econ. 30:353–364, 2000) variance measure. The aim is to analyze the role of each shift-share component in explaining interregional inequality in productivity per worker. Applying this inequality decomposition approach to prefectural data in post-war Japan generates several empirical results. One of the most interesting results is that the productivity differential component, which can be attributed to the region-specific sectoral productivity differential, was a dominant contributor throughout the period, although its values varied by year. Considering that the productivity differential component as an index of accumulated past investments within a given sector, its yearly variation indicates alternating policy shifts in the regional allocation of investment. This is consistent with the empirical result of Kataoka (Rev. Urban Reg. Dev. Stud. 17:115–139, 2005) that the regional development policy in post-war Japan alternated between efficiency-oriented investment allocation, which implies greater investment in higher-productivity regions, and equity-oriented investment allocation, which implies greater investment in lower-productivity regions. Moreover, the divergence in the interprefectural inequality of sectoral productivity differentials and the convergence in the interprefectural inequality of the sectoral employment share, observed from the mid-1970s, imply the advance of interregional division of labor, which may result from the agglomeration of the knowledge-intensive activities in Tokyo regions. This interregional relocation was described as Tokyo monopolar regional system by Fujita and Tabuchi (Reg. Sci. Urban Econ. 27:643–667, 1997).