Early Impacts of the Affordable Care Act on Health Insurance Coverage in Medicaid Expansion and Non‐Expansion States

The Affordable Care Act (ACA) aimed to achieve nearly universal health insurance coverage in the United States through a combination of insurance market reforms, mandates, subsidies, health insurance exchanges, and Medicaid expansions, most of which took effect in 2014. This paper estimates the causal effects of the ACA on health insurance coverage in 2014 using data from the American Community Survey. We utilize difference‐in‐difference‐in‐differences models that exploit cross‐sectional variation in the intensity of treatment arising from state participation in the Medicaid expansion and local area pre‐ACA uninsured rates. This strategy allows us to identify the effects of the ACA in both Medicaid expansion and non‐expansion states. Our preferred specification suggests that, at the average pre‐treatment uninsured rate, the full ACA increased the proportion of residents with insurance by 5.9 percentage points compared to 2.8 percentage points in states that did not expand Medicaid. Private insurance expansions from the ACA were due to increases in both employer‐provided and non‐group coverage. The coverage gains from the full ACA were largest for those without a college degree, non‐whites, young adults, unmarried individuals, and those without children in the home. We find no evidence that the Medicaid expansion crowded out private coverage.     

Child Support and the Affordable Care Act's Medicaid Expansions

A quickly developing literature has shown that the Affordable Care Act's (ACA) Medicaid expansions have improved health insurance coverage, health, and financial well‐being among low‐income adults without dependent children. This population includes noncustodial parents. With substantial overlap in the population that is typically obligated to pay child support and the population that has strongly benefited from the expansions, there may be potential implications for child support enforcement. In this paper, I examine the effect of public health insurance eligibility to low‐income adults on child support outcomes. I find that the ACA Medicaid expansions increased child support distributed to custodial families as arrears by 8.5 percent. Evidence also suggests current support distributions increased by about 2 percent. There were no significant effects on paying toward a child support order. Among unmarried mothers, the likelihood of child support receipt increased by 8 percent. These results imply that access to public health insurance can increase the ability of noncustodial parents to pay child support.     

Immigrant Health Care Access and the Affordable Care Act

In spite of major coverage expansions under the Patient Protection and Affordable Care Act (ACA), a large proportion of immigrants will continue to remain outside the scope of coverage. Because various provisions of the ACA seek to enhance access, advancing knowledge about immigrant access to health care is necessary. The authors apply the well‐known Andersen model on health care access to two measures—one focusing on perceptions of unmet health care needs and the other on physician visits during the last year. Using data from the New Jersey Family Health Survey, the authors find that prior to implementation of the ACA coverage expansions, immigrants in New Jersey reported lower levels of unmet health care needs despite poorer self‐rated health compared with U.S.‐born residents. The article concludes with a discussion of the use of Andersen model for studying immigrant health care access and the broader implications of the findings.     

Effects of ACA Medicaid Expansions on Health Insurance Coverage and Labor Supply

We examined the effect of the expansion of Medicaid eligibility under the Affordable Care Act on health insurance coverage and labor supply of low‐educated and low‐income adults. We found that the Medicaid expansions were associated with large increases in Medicaid coverage, for example, 50 percent among childless adults, and corresponding decreases in the proportion uninsured. There was relatively little change in private insurance coverage, although the expansions tended to decrease such coverage slightly. In terms of labor supply, estimates indicated that the Medicaid expansions had little effect on work effort despite the substantial changes in health insurance coverage. Most estimates suggested that the expansions increased work effort, although not significantly.     

Welcome Mats and On‐Ramps for Older Adults: The Impact of the Affordable Care Act's Medicaid Expansions on Dual Enrollment in Medicare and Medicaid

For many low‐income Medicare beneficiaries, Medicaid provides important supplemental insurance that covers out‐of‐pocket costs and additional benefits. We examine whether Medicaid participation by low‐income adults age 65 and up increased as a result of Medicaid expansions to working‐age adults under the Affordable Care Act (ACA). Previous literature documents so‐called “welcome mat” effects in other populations but has not explicitly studied older persons dually eligible for Medicare and Medicaid. We extend this literature by estimating models of Medicaid participation among persons age 65 and up using American Community Survey data from 2010 to 2017 and state variation in ACA Medicaid expansions. We find that Medicaid expansions to working‐age adults increased Medicaid participation among low‐income older adults by 1.8 percentage points (4.4 percent). We also find evidence of an “on‐ramp” effect; that is, low‐income Medicare beneficiaries residing in expansion states who were young enough to gain coverage under the 2014 ACA Medicaid expansions before aging into Medicare were 4 percentage points (9.5 percent) more likely to have dual Medicaid coverage relative to similar individuals who either turned 65 before the 2014 expansions or resided in non‐expansion states. This on‐ramp effect is an important mechanism behind welcome mat effects among some older adults.     

The Effect of the Affordable Care Act Medicaid Expansion on Migration

The expansion of Medicaid to low‐income nondisabled adults is a key component of the Affordable Care Act's strategy to increase health insurance coverage, but many states have chosen not to take up the expansion. As a result, for many low‐income adults, there has been stark variation across states in access to Medicaid since the expansions took effect in 2014. This study investigates whether individuals migrate in order to gain access to these benefits. Using an empirical model in the spirit of a difference‐in‐differences, this study finds that migration from non‐expansion states to expansion states did not increase in 2014 relative to migration in the reverse direction. The estimates are sufficiently precise to rule out a migration effect that would meaningfully affect the number of enrollees in expansion states, which suggests that Medicaid expansion decisions do not impose a meaningful fiscal externality on other states.     

Health Insurance and Young Adult Financial Distress

We study how health insurance eligibility affects financial distress for young adults using the Affordable Care Act's (ACA) dependent coverage mandate─the part of the ACA that requires private health insurance plans to cover individuals up to their 26th birthday. We examine the effects of both gaining and losing eligibility by exploiting the mandate's implementation in 2010 and its automatic disenrollment mechanism at age 26. Our estimates show that increasing access to health insurance lowers young adults’ out-of-pocket medical expenditures and debt in third-party collections. However, reductions in financial distress are transitory, as they diminish after an individual loses access to parental insurance when they age out of the mandate at age 26.     

Does Universal Coverage Improve Health? The Massachusetts Experience

In 2006, Massachusetts passed health care reform legislation designed to achieve nearly universal coverage through a combination of insurance market reforms, mandates, and subsidies that later served as the model for national reform. Using data from the Behavioral Risk Factor Surveillance System, we provide evidence that health care reform in Massachusetts led to better overall self‐assessed health. Various robustness checks and placebo tests support a causal interpretation of the results. We also document improvements in several determinants of overall health: physical health, mental health, functional limitations, joint disorders, and body mass index. Next, we show that the effects on overall health were strongest among those with low incomes, nonwhites, near‐elderly adults, and women. Finally, we use the reform to instrument for health insurance and estimate a sizeable impact of coverage on health.     

The Health Care Safety Net and the Affordable Care Act: Implications for Hispanic Immigrants

There are currently more than 11 million undocumented immigrants in the United States; the majority of them are of Hispanic origin. This article shows that Hispanic immigrants in the Greater Richmond, Virginia, area rely heavily on free clinics for basic health care services. Free clinics do not receive any public funding and thus face reduced government regulation. As a result, these clinics typically present fewer barriers to undocumented immigrants seeking care. Although free clinics function outside the mainstream of government funding for health care services, the Patient Protection and Affordable Care Act (ACA) of 2010 is so broad and far‐reaching in its scope and potential application that free clinics cannot escape its grasp once the new law is fully implemented. Because the ACA does not provide insurance coverage to undocumented immigrants, free clinics will remain their primary sources of care and treatment. Consequently, those responsible for implementing the ACA should consider the impact on free clinics.     

THE AFFORDABLE CARE ACT'S EFFECTS ON PATIENTS,PROVIDERS, AND THE ECONOMY: WHAT WE'VE LEARNED SO FAR

As we approach the tenth anniversary of the passage of the Affordable Care Act, it is important to reflect on what has been learned about the impacts of this major reform. In this paper, we review the literature on the impacts of the ACA on patients, providers, and the economy. We find strong evidence that the ACA's provisions have increased insurance coverage. There is also a clearly positive effect on access to and consumption of health care, with suggestive but more limited evidence on improved health outcomes. There is no evidence of significant reductions in provider access, changes in labor supply, or increased budgetary pressures on state governments, and the law's total federal cost through 2018 has been less than predicted. We conclude by describing key policy implications and future areas for research.     

The Effect of Requiring Private Employers to Extend Health Benefit Eligibility to Same‐Sex Partners of Employees: Evidence from California

Health disparities related to sexual orientation are well documented and may be due to unequal access to a partner's employer‐sponsored insurance (ESI). We provide the literature's first evaluation of legislation enacted by California in 2005 that required private employers within the state to treat employees in committed same‐sex relationships in the same way as employees in different‐sex marriages with respect to ESI. Our analysis uses data on sexual orientation, partnership, and health insurance from the 2001 to 2007 California Health Interview Surveys (CHIS). Prior to the reform, partnered gay men and lesbians were significantly less likely to have ESI in someone else's name than partnered heterosexuals. Pooling data from 2001 to 2007, we find that the reform had no effects on differences in insurance outcomes between gay and straight men. We find some evidence that the reform increased partnership, reduced full‐time employment, and increased health insurance coverage among lesbians relative to heterosexual women. The increases in insurance coverage for lesbians are consistent with a role for expanded dependent ESI, suggesting that such policies may reduce sexual orientation‐based insurance disparities among women.     

Medicaid matters: children's health and Medicaid eligibility expansions.

In the late 1980s, a series of federal laws were enacted which expanded Medicaid eligibility to more of the nation's children. States had a great amount of discretion in how fast and how far these expansions were implemented. As a result, there was great variation among the states in defining who was eligible for the program. This variation provides a rare opportunity to disentangle the effect of Medicaid from a child's socioeconomic status. Using data from the National Health Interview Survey, we address whether the Medicaid expansions improved the health and functional status of children. Econometric models were developed using fixed-effects regressions, and were estimated separately for white, black, and Hispanic children. White children experienced statistically significant reductions in acute health conditions and functional limitations. Black and Hispanic children showed some evidence of improved health conditions and functional status, but this evidence is inconclusive in the study sample. This may be due to differences in their access to appropriate health services or to the smaller sample size of minorities in each geographic area. The findings are also relevant to the implementation of the Children' Health Insurance Program (CHIP), the latest federal effort to expand access to health care to poor and near poor children. In many states, CHIP is being implemented in whole or in part through further Medicaid expansions.     

A Reevaluation of the Effects of State and ACA Dependent Coverage Mandates on Health Insurance Coverage

We study state and federal health insurance coverage mandates for young adults. Despite consistent findings that the Affordable Care Act's (ACA) federal mandate was effective, research has disagreed on whether preexisting, state-level mandates were successful in increasing coverage. We reconsider the issue with a new analytical perspective and newly available accurate data on state mandates. We show that the impact of the state mandates was substantive and concentrated among young adults between ages 19 and 23. Our estimates indicate that dependent coverage rose by 3.9 percentage points and overall coverage rose by 3.3 percentage points. Crowd-out of coverage through young adults’ own jobs was negligible. For those above 23, we find little evidence of changes in coverage. We incorporate these insights into analysis of the ACA's mandate, showing its effects were focused among those who were not eligible for state mandates, or were eligible but older than 23. Our results suggest that eligibility restrictions played important roles in limiting the scope of the state mandates, but they can be practical and effective tools for policymakers looking to ensure or expand coverage for young adults in the face of uncertainty about the ACA.     

The devil may be in the details: how the characteristics of SCHIP programs affect take-up.

In this paper, we explore whether the specific design of a state's program has contributed to its success in meeting two objectives of the Children's Health Insurance Program (SCHIP): increasing the health insurance coverage of children in lower income families and doing so with a minimum reduction in their private health insurance coverage (crowd-out). In our analysis, we use two years of Current Population Survey data, 2000 and 2001, matched with detailed data on state programs. We focus on two populations: the eligible population of children, broadly defined--those living in families with incomes below 300 percent of the federal poverty line (FPL)--and a narrower group of children, those who we estimate are eligible for Medicaid or SCHIP. Unique state program characteristics in the analysis include whether the state plan covers families; whether the state uses presumptive eligibility; the number of months without private coverage that are required for eligibility; whether there is an asset test; whether a face-to-face interview is required; and specific outreach activities. Our results provide evidence that state program characteristics are significant determinants of program success.     

Medicaid,the States and Health Care Reform

Health care reform in the US is relying extensively on Medicaid for achieving universal health coverage. This article addresses the question of whether Medicaid is an appropriate foundation for reducing the ranks of the uninsured, given its dependence on economic conditions and the vulnerability of state budgets, along with the ever-changing preferences of governors and legislators. This article assesses the effects of the ebb and flow of Medicaid policy-making on at‐risk populations and what this implies for the Affordable Care Act. By establishing a nationwide income floor at 133% of the Federal Poverty Level, the legislation eliminates eligibility inequities across the states. However, it is argued that when state budgets are strained, as they undoubtedly will be when the reform bill is fully implemented, local officials will downsize benefit packages, raise co-payments, mandate more managed care, and reduce provider payments, negatively affecting the availability, scope, and quality of services.     

Examining Policy Implementation in Health Care: Rule Abidance and Deviation in Emergency Medical Services

Passage of the Patient Protection and Affordable Care Act (ACA) has served to refocus attention on the complexity of health care delivery in the United States, with particular attention to concepts of quality, access, and outcomes. This article argues that our understanding of the ACA must be informed by an examination of policy implementation in health care, including the core public function of emergency medical services (EMS). Key concepts of implementation in frontline service—notably, rule abidance and deviation—are examined from the perspective of street‐level EMS workers. Results indicate that the intersection of rules, patient needs, and professional culture creates instances of both rule abidance and deviation, both of which contribute substantively to concepts of quality in a health care setting.     

The Effects of Mandated Health Insurance Benefits for Autism on Out‐of‐Pocket Costs and Access to Treatment

As of 2014, 37 states have passed mandates requiring many private health insurance policies to cover diagnostic and treatment services for autism spectrum disorders (ASDs). We explore whether ASD mandates are associated with out‐of‐pocket costs, financial burden, and cost or insurance‐related problems with access to treatment among privately insured children with special health care needs (CSHCNs). We use difference‐in‐difference and difference‐in‐difference‐in‐difference approaches, comparing pre–post mandate changes in outcomes among CSHCN who have ASD versus CSHCN other than ASD. Data come from the 2005 to 2006 and the 2009 to 2010 waves of the National Survey of CSHCN. Based on the model used, our findings show no statistically significant association between state ASD mandates and caregivers’ reports about financial burden, access to care, and unmet need for services. However, we do find some evidence that ASD mandates may have beneficial effects in states in which greater percentages of privately insured individuals are subject to the mandates. We caution that we do not study the characteristics of ASD mandates in detail, and most ASD mandates have gone into effect very recently during our study period.     

The effects of state policy design features on take-up and crowd-out rates for the State Children's Health Insurance Program.

We evaluate the effects of state policy design features on SCHIP take-up rates and on the degree to which SCHIP benefits crowd out private benefits. The results indicate overall program take-up rates of approximately 10 percent. However, there is considerable heterogeneity across states, suggesting a potential role of inter-state variation in policy design. We find that several design mechanisms have significant and substantial positive effects on take-up. For example, eliminating asset tests, offering continuous coverage, simplifying the application and renewal processes, and extending benefits to parents all have sizable and positive effects on take-up rates. Mandatory waiting periods, on the other hand, consistently reduce take-up rates. In all, inter-state differences in outreach and anti-crowd-out efforts explain roughly one-quarter of the cross-state variation in take-up rates. Concerning the crowding out of private health insurance benefits, we find that between one-quarter and one-third of the increase in public health insurance coverage for SCHIP-eligible children is offset by a decline in private health coverage. We find little evidence that the policy-induced variation in take-up is associated with a significant degree of crowd out, and no evidence that the negative effect on private coverage caused by state policy choices is any greater than the overall crowding-out effect. This suggests that states are not augmenting take-up rates by enrolling children that are relatively more likely to have private health insurance benefits.