Patrick Carlin

Patrick Carlin

Assistant Professor of Economics

Washington State University

Biography

Patrick Carlin is an Assistant Professor in the School of Economic Sciences at Washington State University. Patrick has research interests in health economics, indigenous economics, social policy, and policy analysis.

Interests

  • Health Economics
  • Indigenous Economics
  • Policy analysis
  • Social policy

Education

  • PhD in Public Affairs, 2023

    Indiana University

  • BS in Mathematics, 2014

    Hofstra University

Publications

Working Papers

Medicaid and the Mental Health of Minority Populations: Evidence from Administrative Data

We investigate the impact of the expansions of Medicaid coverage due to the Affordable Care Act (ACA) on under-served populations using claims data from the period 1999-2021. These panel data include the universe of American Indian and Alaska Native (AIAN) Medicare and Medicaid populations and a twenty percent random sample from the rest of the US which allows us to trace out enrollments and utilization of various health care services over time. We focus on AIAN individuals and the utilization of mental health and substance abuse treatment services in particular. We find an increase in the enrollment in Medicaid for the AIAN population aged 18-65 of 5-13. We also find a large increase in mental health and substance abuse prevention visits in the wake of ACA state expansions. Our results clearly indicate that Medicaid coverage increased mental health and substance-abuse related treatment in the adult (18-64) and elderly (65 and over) population of AIAN. These increases are not due to newly enrolled patients' increased utilization of health services but arise in large part from increased utilization by individuals who were already enrolled in Medicaid at the time of the expansions. Supply-side effects, such as the expansion of substance-abuse and mental health services in response to the ACA, likely account for rise in utilization. In addition to AIAN, we present evidence on African Americans' enrollment, heath care use, and outcomes for mental health and substance use disorders.

Self-Governance of Healthcare Systems

Self-governance is an important legal right as well as a political and moral goal for many Native Americans in the United States. In this paper, I study policy changes that make it easier for tribal governments to exercise their self-governance rights to assume managerial control over the operation of Indian Health Service (IHS) facilities through specialized contracts called “compacts”. Since compacting with IHS was allowed in the 1990s, tribal governments have assumed control over more than half of IHS facilities. I gather data on IHS facilities from 1990 to 2019, which provides a way to measure the self-governance status of IHS facilities. I use the CDC Multiple Cause of Death county-level data to construct measures of mortality rates over time. Using a staggered adoption difference-in-differences design, I estimate that all-cause mortality increased by 16.3% following the change to self-governance. Therefore, on average, health outcomes worsen after take-up of tribal control. However, I find substantial treatment effect heterogeneity. For example, the Alaska region- which has more funding and reportedly higher administrative capacity- experiences an 15.1% decrease in mortality. Furthermore, I show that the presence of a tribal casino completely negates the negative impact. To better understand how to interpret these results, I also use a logistic model as well as a logistic LASSO to explore several potential explanatory factors to predict take-up of compacts with IHS. Mortality leads are generally not predictive, but regional fixed effects as well as exposure to laws decreasing tribal control are predictive. Therefore, tribal governments and citizens likely see a large benefit beyond direct impacts on health. Taken together, these results suggest that there is a decrease in health following the take-up of compacts which can be negated with higher revenue and administrative capacity.

Teaching

ECONS 301: Intermediate Microeconomics

Instructor: Spring 2024, Fall 2024

ECONS 305: Intermediate Microeconomics without Calculus

Instructor: Fall 2023-

ECONS 324: The Economics of Health Care

Instructor: Spring 2026-

ECONS 499: Undergraduate Independent Study

Instructor: Spring 2024-

SPEA V379: Performance Measurement and Program Evaluation (Undergraduate)

Instructor: Spring 2021-Spring 2022

SPEA V706: Statistics for Research in Public Affairs I (PhD)

Lab Instructor: Fall 2020-Fall 2021

SPEA V707: Statistics for Research in Public Affairs II (PhD)

Lab Instructor: Spring 2020-Spring 2022

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