Structural Representations and Identification of Marginal Policy Effects
在不可分模型中研究边际政策效应的结构解释，证明其等于结果条件加权平均结构导数的泛函导数，并提出一种补充现有方法的识别策略。
ABSTRACT This article investigates the structural interpretation of the marginal policy effect (MPE) within nonseparable models. We demonstrate that, for a smooth functional of the outcome distribution, the MPE equals its functional derivative evaluated at the outcome‐conditioned weighted average structural derivative. This equivalence is definitional rather than identification‐based. Building on this theoretical result, we propose an alternative identification strategy for the MPE that complements existing methods.