论文部分内容阅读
针对一般灵敏度分析存在的不足,提出一种效益曲线分析方法。效益曲线的纵坐标为效益变化,横坐标为某一约束方程的右端项,曲线上任一点切线的斜率则为影子价格。将效益曲线划分为无可行解区、过渡区I、灵敏度分析区、过渡区II和临界区共5个区,并给出相应的算法。实际应用表明,效益曲线可以给出使得效益增加的约束方程右端项参数的最大区间,同时给出模型有可行解的下界值,对于生产计划的参数分析和调整具有重要的意义。
Aiming at the deficiency of general sensitivity analysis, a method of benefit curve analysis is proposed. The vertical axis of the benefit curve is the change in efficiency. The horizontal axis is the right-hand end of a constraint equation. The slope of any tangent at any point on the curve is the shadow price. The efficiency curve is divided into five regions, namely, the unfeasible zone, the transition zone I, the sensitivity analysis zone, the transition zone II and the critical zone, and the corresponding algorithms are given. The practical application shows that the benefit curve can give the maximum interval of the right-end parameter of the constraint equation which makes the efficiency increase, and also gives the lower bound of the feasible solution of the model, which is of great significance for the parameter analysis and adjustment of the production plan.