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针对公私合作(PPP)项目,以VFM效果作为政府收益的评价指标,分析控制权为连续变量的情况下投资、成本和收益等变量的取值,在此基础上构建控制权配置与VFM效果的相关关系模型,结果发现,VFM效果与项目公司拥有的控制权呈二次曲线关系,因此,二次项系数、一次项系数及对称轴位置影响VFM的单调性,进而决定着控制权的最佳配置.论文基于上述原理构建控制权配置的决策模型,并通过算例验证所得模型具有较强的适用性.“,”This paper made the VFM(Value for Money) as the evaluating indicator of the government's return in the public and private projects.Analyzing the variables of investment,costs and return and assuming that the control rights is continuous variable,we constructed the correlativity model of the allocation of control rights and the VFM,with the result showing a quadratic curve.This means there were coefficients of quadratic terms and linear terms concurring with the position of symmetry axis,affecting the monotonous of the VFM,which is a factor for further determining the optimum allocation of control rights.This paper has constructed the decision model of allocation of control rights on the basis above the calculation through the exact sample to demonstrate the model proves to be effective.