retrogressive method meaning in Chinese

回归方法

The relativity between residents ’ income margin and the economic growth in jilin province was analyzed with positive research methods . the influence of economic growth on income margin in jilin province was studied by retrogressive method and the hypothesis of converse “ u ” was verified . it was also studied from the point of view of total supply by the new classic economic growth model
用实证分析的方法研究吉林省居民收入差距与经济增长相关性:采用回归分析方法研究吉林省经济增长对收入差距的影响,验证了倒“ u ”假说;采用新古典经济增长模型从总供给角度研究收入分配差距对经济增长的影响。