Work

On Doubly Robust Estimation with Nonignorable Missing Data Using Instrumental Variables

Year: 2024

Type: article

Abstract: Suppose we are interested in the mean of an outcome that is subject to nonignorable nonresponse.This paper develops new semiparametric estimation methods with instrumental variables which affect nonresponse, but not the outcome.The proposed estimators remain consistent and asymptotically normal even under partial model misspecifications for two variation independent nuisance components.We evaluate the performance of the proposed estimators via a simulation study, and apply them in adjusting for missing data induced by HIV testing refusal in the evaluation of HIV seroprevalence in Mochudi, Botswana, using interviewer experience as an instrumental variable.

Source: Statistica Sinica

DOI: 10.5705/ss.202023.0383

Authors: Baoluo Sun, Wang Miao, Deshanee S. Wickramarachchi

Institutions: National University of Singapore, Peking University

Language: English

Topic: Advanced Causal Inference Techniques

Subfield: Statistics and Probability

Field: Mathematics

Domain: Physical Sciences

SDG: Good health and well-being

Open Access status: bronze

Funder: Ministry of Education - Singapore