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Working Paper
The Costs of Payment Uncertainty in Healthcare Markets
What does it cost healthcare providers to collect payment in the complex U.S. health insurance system? We study this question using rich data on repeated interactions between a large sample of physicians and many different payers, and investigate the consequences when these costs are high. Payment uncertainty is high and variable, with 19% of Medicaid visits not reimbursed after the first claim submission. In such cases, physicians either forgo substantial revenue or incur costs to collect payment. Using physician movers and practices that span state boundaries, we find that providers respond ...
Working Paper
The Effect of the Patient Protection and Affordable Care Act Medicaid Expansions on Financial Wellbeing
We examine the effect of the Medicaid expansions under the 2010 Patient Protection and Affordable Care Act (ACA) on consumer, financial outcomes using data from a major credit reporting agency for a large, national sample of adults. We employ the synthetic control method to compare individuals living in states that expanded Medicaid to those that did not. We find that the Medicaid expansions significantly reduced the number of unpaid bills and the amount of debt sent to third-party collection agencies among those residing in zip codes with the highest share of low-income, uninsured ...
Working Paper
Old, sick, alone, and poor: a welfare analysis of old-age social insurance programs
Poor health, large acute and long-term care medical expenses, and spousal death are significant drivers of impoverishment among retirees. We document these facts and build a rich, overlapping generations model that reproduces them. We use the model to assess the incentive and welfare effects of Social Security and means-tested social insurance programs such as Medicaid and food stamp programs, for the aged. We find that U.S. means-tested social insurance programs for retirees provide significant welfare benefits for all newborn. Moreover, when means-tested social insurance benefits are of the ...
Working Paper
A Denial a Day Keeps the Doctor Away
Who bears the consequences of administrative problems in healthcare? We use data on repeated interactions between a large sample of U.S. physicians and many different insurers to document the complexity of healthcare billing, and estimate its economic costs for doctors and consequences for patients. Observing the back-and-forth sequences of claim denials and resubmissions for past visits, we can estimate physicians’ costs of haggling with insurers to collect payments. Combining these costs with the revenue never collected, we estimate that physicians lose 18% of Medicaid revenue to billing ...
Report
The Affordable Care Act and the COVID-19 Pandemic: A Regression Discontinuity Analysis
Did Medicaid expansion under the Affordable Care Act affect the course of the COVID-19 pandemic? We answer this question using a regression discontinuity design for counties near the borders of states that expanded Medicaid with states that did not. Relevant covariates change continuously across the Medicaid expansion frontier. We find that (1) health insurance changes discontinuously at the frontier, (2) COVID-19 testing is discontinuously larger in Medicaid-expanding states, and (3) the fraction of beds occupied in ICUs is discontinuously smaller in Medicaid-expanding states. We also find ...
Working Paper
Does Physician Pay Affect Procedure Choice and Patient Health? Evidence from Medicaid C-section Use
I investigate the relationship between physician pay, C-section use, and infant health, using vital statistics data and newly collected data on Medicaid payments to physicians. First, I confirm past results?when Medicaid pays doctors relatively more for C-sections, they perform them more often. I bolster the causal interpretation of this result by showing that salaried doctors do not respond to this pay differential, and by using a much larger sample of states and years. Second, unlike past work, I look at how changing physician pay affects infant health outcomes. I find that increased ...
Discussion Paper
Is Health Insurance Good for Your Financial Health?
What is the purpose of health care? What is the purpose of health insurance? When people fall ill, they seek health care in order to get better. But insurance has a slightly different function: Its main role is not to protect our health per se, but to protect our finances. For most people, lifetime health expenditures are quite low. However, some people have enormous health costs owing to major illnesses or health conditions. And this is where health insurance comes in?its goal (like that of any other form of insurance) is to protect these individuals against large, and sometimes ruinous, ...
Working Paper
Medicaid Expansion and the Unemployed
We examine how a key provision of the Affordable Care Act—the expansion of Medicaid eligibility—affected health insurance coverage, access to care, and labor market transitions of unemployed workers. Comparing trends in states that implemented the Medicaid expansion to those that did not, we find that the ACA Medicaid expansion substantially increased insurance coverage and improved access to health care among unemployed workers. We then test whether this strengthening of the safety net affected transitions from unemployment to employment or out of the labor force. We find no meaningful ...
Report
The Affordable Care Act and the market for higher education
Investment in human capital is a key determinant of wages and an important contributor to economic growth. However, incomplete markets for health insurance may distort educational incentives because of the link between employment and health insurance. The Medicaid expansion of the Affordable Care Act (ACA) dramatically broadened insurance offerings, and thus may have affected people’s incentives for education. To study how increasing efficiency in insurance markets affects educational investments, we use a triple-difference strategy comparing counties with different levels of uninsurance ...
Working Paper
Losing Public Health Insurance: TennCare Disenrollment and Personal Financial Distress
A main goal of health insurance is to smooth out the financial risk that comes with health shocks and health care. Nevertheless, there has been relatively sparse evidence on how health insurance affects financial outcomes. The few studies that exist focus on the effect of gaining health insurance. This paper explores the effect of losing public health insurance on measures of individual financial well-being. In 2005, the state of Tennessee dropped about 170,000 individuals from Medicaid, resulting in a plausibly exogenous shock to health insurance status. Both across- and within-county ...