Ex post implementation in environments with private goods
通过构造证明，在具有多维信号和相互依赖价值的私有品环境中，存在事后激励相容的机制，该机制与广义维克里拍卖类似，表明信息外部性与事后均衡可以共存。
We prove by construction that ex post incentive compatible mechanisms exist in a private goods setting with multi-dimensional signals and interdependent values. The mechanism shares features with the generalized Vickrey auction of one-dimensional signal models. The construction implies that for environments with private goods, informational externalities (i.e., interdependent values) are compatible with ex post equilibrium in the presence of multi-dimensional signals.