Level of Urbanization, Social Security Satisfaction and Fertility Intentions

Using the data from the China Social Situation Survey (CSS2021), we investigated the effect of social security satisfaction on fertility intention of people of childbearing age. Using OLS model and ordered probit model for regression, it is found that there is an inverted U-shaped curve relationship between social security satisfaction and fertility intention of people of childbearing age, which is "increasing first and then decreasing", and when social security satisfaction has not crossed the inflection point, it is in the stage of facilitating the influence on fertility intention; after interacting social security satisfaction with urbanization level, it has a certain inhibiting effect on fertility intention; after interacting social security satisfaction with urbanization level, it has a certain inhibiting effect on fertility intention. When social security satisfaction has not crossed the inflection point, it is in the promotion stage; after interacting social security satisfaction with urbanization level, it has a certain inhibiting effect on fertility intentions; after analyzing the heterogeneity, it is found that social security satisfaction has different degrees of influence on the fertility intentions of people of different ages and different regions, and the influence on the fertility intentions of the young group and rural residents is the greatest. Based on this, the government should prevent the spillover of the benefits of childbearing, reduce the cost of childbearing for the residents, build a birth-friendly society, and promote the synergistic and high-quality development of population and social security in China.