种植业优势对城乡收入差距影响研究——基于GMM动态面板模型分析

Study on the Influence of Planting Superiority on Urban-Rural Income Gap—Based on GMM Dynamic Panel Model Analysis

本文通过选取2005年至2022年贵州省际面板数据,应用比较优势指数法计算出该省主要农作物相较全国的规模优势指数与效率优势指数,以此作为核心解释变量,并运用系统GMM动态面板模型估计方法,实证检验了种植业优势对城乡收入差距的影响效应。实证结果显示,规模优势指数与效率优势指数均对城乡收入差距缩小具有积极促进作用,并以此结果,提出相关参考建议。

This paper selects the inter-provincial panel data of Guizhou from 2005 to 2022, uses the comparative advantage index method to calculate the scale advantage index and efficiency advantage index of major crops in Guizhou compared with the country as the core explanatory variables, and uses the systematic GMM dynamic panel model estimation method to empirically test the effect of planting advantage on the urban-rural income gap. The empirical results show that both scale advantage index and efficiency advantage index have a positive effect on narrowing urban-rural income gap, and based on the results, the relevant reference suggestions are put forward.