Scale Benefit Analysis of Cities in Jiangxi Province : Based on Grey Incidence Analysis

City scale benefit refers to the comprehensive benefit of cities, which includes economic, social and environmental benefit. By selecting 20 indicators which can fully reflect city scale benefit and using grey relational analysis, this paper analyzes statistical data in 2018 of 11 cities in Jiangxi Province. On the basis of correlation coefficient comparison and clusters of grey incidences, corresponding strategies of city scale benefit are put forward.