条件LATE模型的整体表示:一个可分性结果
Global Representation of the Conditional LATE Model: A Separability Result
摘要:
本文研究了条件LATE模型的潜在指数表示,明确了协变量在治疗选择中的作用。我们发现,如果单调性条件的方向是相同的所有值的条件协变量,这是经常假设在文献中,那么治疗选择方程必须满足仪器和协变量之间的可分性条件。该全局表示结果确立了对协变量进入治疗选择方程的方式施加的可检验限制。我们后来扩展的表示定理,将多个有序的治疗水平。
英文摘要:
This paper studies the latent index representation of the conditional LATE model, making explicit the role of covariates in treatment selection. We find that if the directions of the monotonicity condition are the same across all values of the conditioning covariate, which is often assumed in the literature, then the treatment choice equation has to satisfy a separability condition between the instrument and the covariate. This global representation result establishes testable restrictions imposed on the way covariates enter the treatment choice equation. We later extend the representation theorem to incorporate multiple ordered levels of treatment.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。