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arXiv 2106.07587stat.MEmath.STstat.OTstat.TH
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基于有限信息极大似然的二元结果模型选择方法

Limited-Information Maximum Likelihood based Model Selection Procedures for Binary Outcomes

Shunichiro Orihara

摘要:

不可测协变量是因果推断中的重要问题之一。即使存在一些不可测量的协变量,一些工具变量方法,如两阶段残差包含(2SRI)估计,或有限信息极大似然(LIML)估计,可以获得因果效应的无偏估计,尽管存在非线性结果,如二元结果,但它要求我们不仅指定正确的结果模型,而且还指定正确的治疗模型。因此,检测正确的模型是一个重要的过程。在本文中,我们提出了两个模型选择过程:AIC型和BIC型,并确认其性质。建议的模型选择程序是基于LIML估计。我们证明了所提出的BIC型模型选择过程具有模型选择一致性,并通过仿真数据验证了所提出的模型选择过程的性质.

英文摘要:

Unmeasured covariates constitute one of the important problems in causal inference. Even if there are some unmeasured covariates, some instrumental variable methods such as a two-stage residual inclusion (2SRI) estimator, or a limited-information maximum likelihood (LIML) estimator can obtain an unbiased estimate for causal effects despite there being nonlinear outcomes such as binary outcomes; however, it requires that we specify not only a correct outcome model but also a correct treatment model. Therefore, detecting correct models is an important process. In this paper, we propose two model selection procedures: AIC-type and BIC-type, and confirm their properties. The proposed model selection procedures are based on a LIML estimator. We prove that a proposed BIC-type model selection procedure has model selection consistency, and confirm their properties of the proposed model selection procedures through simulation datasets.

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。

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