The Economics of Using Data Processing to Analyze Changes in Population Flows

with the deepening of China's reform, the scale of autonomous population flow is not increasing. In particular, Southwest China is relatively backward in economic development, relatively fast in population growth, complicated ecological environment, frequent population flow and relatively concentrated ethnic minorities. Population flow is the key factor for the rapid development of China's social economy as a whole, and the change of population flow will inevitably lead to the change of economic welfare. This paper aims to study the changes of Economics under different types of population mobility. Taking the four provinces in Southwest China as the research object, this paper boldly tries to combine the theory of population mobility with the theory of economic welfare, and uses the grey correlation analysis method and Data processing method to explore the value of population mobility on economic welfare; on the basis of summing up the successful experience of predecessors in establishing the economic welfare index system, this paper constructs the economic welfare index system of Southwest China, and analyzes the specific aspects of the impact of population flow on the social and economic welfare of Southwest China.