城市金融业发展对农民增收的非线性影响——基于湖南省14个地级市的门限回归分析

The Nonlinear Influence of Urban Financial Industry Development on Farmers’Income——Based on the Research of 14 Prefecture-level Cities in Hunan Province

金融业是促进国民经济增长的强效剂,金融业的发展能直接或间接地影响国民生活的方方面面。本文基于湖南省14个地级市2007—2017年的面板数据,构造门限回归模型,研究金融业发展水平作为门限变量对农民纯收入水平影响的门限效应。研究表明,湖南省地级市金融业发展水平对农民纯收入水平的影响存在单一门限效应,且金融业发展水平对农民纯收入水平总体上是存在着正向的促进效果。此外,本文研究发现湖南省各地级市经济发展水平、地区城市化水平以及城市基础设施建设水平对农民纯收入增加均存在着正向的促进作用。

Financial industry is a powerful agent to promote the growth of national economy.The development of financial industry can directly or indirectly affect every aspect of national life.Based on the panel data of 14 prefecture-level cities in Hunan province from 2007 to 2017,this paper constructed threshold regression model to study the threshold effect of financial industry development level as threshold variable on farmers’net income level.The research showed that the development level of financial industry in prefecture-level cities of Hunan province has a single threshold effect on farmers’net income level,and the development level of financial industry has a positive effect on farmers’net income level in general.In addition,the paper found that the economic development level,urbanization level and infrastructure construction level of each city in Hunan province have a positive effect on the increase of farmers’net income.