Research on the Characteristics of Population Flow in Yanbian State Influenced by Policy Environment Based on Non-parametric Tests

Focusing on the Yanbian State, this paper applies non-parametric tests to analyze the impact of the policy environment on the characteristics of population flow. It not only focuses on policy factors directly related to population flow, such as the household registration system and cross-border management measures, but also deeply explores indirect influencing factors such as public service and tax policies. The study shows that the household registration system and cross-border management measures significantly affect the purpose of population flow related to employment and business, but have no significant effect on the other purposes and the frequency of flow. The effects of public service and tax policies on frequency and purpose are also insignificant, indicating that although policy factors have a significant role in guiding population flow in specific aspects, there are differences in the overall effects. This paper provides empirical evidence for optimizing the policy environment and promoting rational regional flow. This paper aims to systematically analyze the phenomenon of population mobility in the Yanbian region through the policy environment, reveal its internal laws and action mechanisms, provide theoretical support for promoting the modernization of border governance, and offer scientific basis and decision-making references for policy optimization, regional coordinated development, and social harmony and stability in the Yanbian region and even other border areas.