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Malmquist指数反映的是在2个周期之间全要素生产率的相对变化情况。当采用数据包络分析计算Malmquist指数时,在规模收益可变假设下会出现无可行解的情况。从改变参考生产可能集从而消除交叉参比的角度提出一种相邻共同参比Malmquist指数计算方法,有效解决Malmquist模型无可行解的问题。
The Malmquist index reflects the relative change in total factor productivity over a two-period period. When using the data envelope analysis to calculate the Malmquist index, there is no feasible solution under the variable returns of scale returns. A method of calculating the Malmquist index of adjacent common reference is proposed from the view of changing the reference production possible set and eliminating the cross-reference, so as to effectively solve the problem that there is no feasible solution to the Malmquist model.