摘要
本文致力于探讨在我国大规模人口跨地区迁移的背景下,基本养老保险全国统筹改革政策如何通过影响人口流动进而影响地区间不平衡。文章构建了两期异质性行为人世代交叠模型进行数值模拟,结果显示,地方政府和中央政府不同的改革政策显现出不同的政策效果。如果中央政府不改变其调剂干预政策,仅通过地方政府改革本辖区所适用的养老保险缴费率或足额征缴率政策并不能有效改善地区不平衡的状况。只有当中央政府合理调整中央调剂金政策,推进全国统筹改革,同时各省级政府配合以相应的地方政策措施,逐步统一并适当降低缴费率,加大征缴力度,才有利于通过影响跨区域人口流动来缩小地区间的收入不平等差距和基本养老保险基金收支余缺的差距,从而改善地区间不平衡的现状。
Under the background of large-scale cross-regional migration in China,this paper aims to examine the impact of the national pooling reform policies on the population migration between the developed and less developed regions,as well as the impact on the income inequality gap and the regional imbalance of basic pension insurance funds.We constructed a two-stage heterogeneous behavior overlapping model and conducted numerical simulations.Our findings show that different reform policies conducted by local governments and the central government have different policy effects.Although local governments increase the contribution rate or the collection ratio,these policies do not affect the household migration decisions.When local governments adopt a uniform and lower contribution rate and increase the collection ratio,and in the meantime the central government increases the upward contribution ratio and the downward allocation to the less developed provinces,it will help to change the spatial distribution of population and narrow the regional imbalance of the pension insurance funds.
作者
周心怡
蒋云赟
Zhou Xinyi;Jiang Yunyun
出处
《财政研究》
CSSCI
北大核心
2021年第3期84-100,共17页
Public Finance Research
基金
教育部重大攻关项目“建设现代化经济体系的路径与策略研究”(18JZD029)的支持
关键词
全国统筹
中央调剂金
人口流动
地区不平衡
National Pooling
Central Adjustment Mechanism
Population Migration
Regional Imbalance
作者简介
周心怡,北京大学经济学院博士研究生;通讯作者:蒋云赟,北京大学经济学院副教授。
