In the ESG investment decision,investors should pay attention not only to capital return,but also to environment,social,and governance.A reliable ESG ranking can be a good guide for investors'decision-making behavior.Previous stud-ies confirm that the differential ESG ranking of one company under different rating systems,which hinders the development of ESG.Thus,this paper proposes an ESG ranking method to solve the problem of differential ESG ranking due to decision mak-ers'preferences.Specifically,in line with ESG,the initial group decision matrix is first constructed based on the importance order of dimensions.Second,Gibbs en-tropy is applied to obtain the optimal entropy of the enterprise.Finally,the ESG index is given for the purpose of ranking the evaluated companies.The experimen-tal data were obtained from Harvest Fund and Quant Data,and then Spearman's rank correlation coefficient and satisfaction index were used to test the validity and sophistication of the proposed method.
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