Subject Area
Economics
Abstract
Health outcomes and access to healthcare are shaped by household decision-making, structural barriers, and individual behavior. This dissertation examines three key dimensions of health equity in the United States: maternal bargaining power in child health, vaccination disparities between immigrants and U.S.-born individuals, and predictors of health insurance enrollment. The first study uses National Health Interview Survey (NHIS) data to examine how maternal bargaining power—proxied by the sex ratio in the marriage market—affects child health outcomes. The findings show that greater maternal influence leads to increased investment in children’s well-being and, consequently, improved health outcomes. By integrating household bargaining and health capital theory, the study highlights how intra-family decision-making shapes intergenerational health. The second study applies Blinder-Oaxaca decomposition to NHIS data and finds that insurance coverage differences explain about 70% of the flu vaccination gap between immigrants and natives, with cultural beliefs modestly narrowing the gap. The third study compares predictive models and shows that XGBoost, enhanced by data balancing and feature engineering, outperforms traditional methods in identifying individuals at risk of being uninsured. Together, these studies offer data-driven insights into improving healthcare access and equity.
Degree Date
Summer 8-5-2025
Document Type
Dissertation
Degree Name
Ph.D.
Department
Economics
Advisor
Daniel L. Millimet
Second Advisor
Nathaniel Pattison
Third Advisor
Santanu Roy
Number of Pages
121
Format
Creative Commons License

This work is licensed under a Creative Commons Attribution-Noncommercial 4.0 License
Recommended Citation
Chang, Hsin-Wei, "Household Bargaining, Healthcare Access, and Insurance Decisions: Understanding Health Disparities in the U.S." (2025). Economics Theses and Dissertations. 25.
https://scholar.smu.edu/hum_sci_economics_etds/25
Included in
Behavioral Economics Commons, Econometrics Commons, Health Economics Commons, Public Economics Commons
