DEA的生产可能集有两种等价形式—和形式及交形式。
Production possibility set in DEA has two equivalent forms: sum form and intersection form.
生产前沿与生产的技术无效性是联系在一起的，同时生产前沿又与生产可能集的边界很好的吻合起来。
Production frontier contacts with the technical inefficiency, and it is also tallies with the boundary of possible production set.
DEA的生产可能集有两种等价形式—和形式及交形式。相比较而言，交形式更具几何直观性及计算便利性。
Production possibility set in DEA has two equivalent forms: sum form and intersection form. In comparison, the later one has more geometric visualization and convenience of calculation.
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