Characterization of Revenue Equivalence
从图论角度刻画了收益等价性，即分配规则可由唯一支付方案在占优策略下实施的性质。该刻画适用于任意（可能无限）结果空间，并涵盖了许多已知结论，还能识别现有定理未覆盖的情形。
The property of an allocation rule to be implementable in dominant strategies by a unique payment scheme is called revenue equivalence. We give a characterization of revenue equivalence based on a graph theoretic interpretation of the incentive compatibility constraints. The characterization holds for any (possibly infinite) outcome space and many of the known results are immediate consequences. Moreover, revenue equivalence can be identified in cases where existing theorems are silent. Copyright 2009 The Econometric Society.