基于Lasso回归法的人口出生率影响因素分析

Analysis of Influencing Factors of Birth Rate based on Lasso Regression

选取国内生产总值(X1)、受高等教育比例(X2)、人均薪酬(X3)、少年儿童抚养比(X4)、老年人口抚养比(X5)这五个涵盖经济发展情况、人口素质以及人口结构方面的变量,采用Lasso回归法,探讨影响人口出生率的因素.研究表明,国内生产总值、人均薪酬、少年儿童抚养比对人口出生率有明显的正向影响.

The five variables,including gross domestic product（X1）,higher education proportion（X2）,per capita salary（X3）,child rearing ratio（X4）,and elderly population dependency ratio（X5）are used to discuss the influence of population birth.Lasso regression is used to discuss the factors that affect the birth rate of the population.The study shows that the gross domestic product,per capita salary and child support ratio have a significant positive impact on the birth rate.