统计研究 ›› 2013, Vol. 30 ›› Issue (9): 57-63.

• 论文 • 上一篇    下一篇

经济增长是否存在“贫困陷阱”

黄晶等   

  • 出版日期:2013-09-15 发布日期:2013-09-04

On the Existence of “Poverty Trap”: A Study on Chinese Urban Economy

Huang Jing et al.   

  • Online:2013-09-15 Published:2013-09-04

摘要: 本文从OLG随机增长模型出发,使用中国城市数据估计参数化的产出运动方程,对人均实际产出分布的动态过程进行模拟预测。研究发现,尽管产出运动方程并非严格凹,但稳态均衡唯一,经济增长未出现“贫困陷阱”。长期来看地区经济最终趋于单峰收敛,通过离差指数衡量的经济发展不平衡程度下降。外生扰动(如技术进步、政策扶持)的持续性越强,经济增长收敛越快。

关键词: OLG模型, 贫困陷阱, 分布预测, 单峰收敛

Abstract: This paper predicts the evolution of the cross-city income distribution using a stochastic OLG growth model. We estimate the dynamic structure of output per capita with Chinese city data. Result suggests that the non-concavity of the transition function does not imply a "poverty trap". The distribution of output per capita converges in the long run with a single peak, and the more persistent of the exogenous disturbance (such as technological progress, policy support, etc.) the faster the convergence.

Key words: OLG Model, Poverty Trap, Distribution Projection, Single Peak Convergence