本文讨论了一般情况下线性规划问题出现“多反而少”现象的一充分必要条件，以及最小费用流问题出现“多反而少”现象的充分必要条件。
In this paper we discuss the sufficient and necessary conditions for existence of the more-for-less paradox in a minimum cost flow problem.
运输问题存在“多反而少”现象，这是由于在松约束模型中放宽了约束条件，使得可行域变大，产生了新的最优解。
The Transportation Problem exists"more-for-less"paradox, which because the loose-constrained model has broadened the restriction, enlarged the feasible area, and bring new optimal solution.
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