Tim Halliday

The Impact of Public Health Insurance on Medical Utilization in a Vulnerable Population: Evidence from COFA Migrants

April 4, 2019

In March of 2015, the State of Hawaii stopped covering the vast majority of migrants from countries belonging to the Compact of Free Association (COFA) in the state Medicaid program. As a result COFA migrants were required to obtain private insurance in health insurance exchanges established under the Affordable Care Act. Using statewide administrative hospital […]

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Health Investment over the Life-Cycle

January 9, 2019

We quantify what drives the rise in medical expenditures over the life-cycle using a stochastic dynamic overlapping generations model of health investment. Three motives for health investment are considered. First, health delivers a flow of utility each period (the consumption motive). Second, better health enables people to allocate more time to productive or pleasurable activities (the investment […]

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Impact of Financial Incentives on Health Outcomes and Costs of Care among Medicaid Beneficiaries with Diabetes in Hawai’i

January 1, 2019

The Hawai’i Patient Reward And Incentives to Support Empowerment (HI-PRAISE) project, part of the Medicaid Incentives for Prevention of Chronic Diseases program of the Affordable Care Act, examined the impact of financial incentives on Medicaid beneficiaries with diabetes. It included an observational pre-post study which was conducted at nine Federally Qualified Health Centers (FQHCs) between 2013 to […]

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Vog: Using Volcanic Eruptions to Estimate the Health Costs of Particulates

The negative consequences of long-term exposure to particulate pollution are well established but a number of studies find no effect of short-term exposure on health outcomes. The high correlation of industrial pollutants complicates the estimation of the impact of individual pollutants on health. In this study, we use emissions from Kīlauea volcano, which are uncorrelated with […]

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Financial Incentives for Medicaid Beneficiaries With Diabetes: Lessons Learned From HI-PRAISE, an Observational Study and Randomized Controlled Trial

September 1, 2018

The Hawaii Patient Reward and Incentives to Support Empowerment (HI-PRAISE) project examined the impact of financial incentives on Medicaid beneficiaries with diabetes.

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Vog: Using Volcanic Eruptions to Estimate the Health Costs of Particulate

August 20, 2018

By Tim Halliday, John Lynham, and Aureo de Paula Since its inception, the Environmental Protection Agency (EPA) in the United States has proven itself to be effective at reducing air pollution. For the six ‘criteria’ pollutants that the EPA is mandated to regulate, emissions of all six have declined substantially. Particulates have declined by 38% […]

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Health and health inequality during the great recession: Evidence from the PSID

May 1, 2018

We estimate the impact of the Great Recession of 2007-2009 on health outcomes in the United States. We show that a one percentage point increase in the unemployment rate resulted in a 7.8-8.8% increase in reports of poor health. In addition, mental health was adversely impacted. These effects were concentrated among those with strong labor force […]

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Health and health inequality during the great recession: Evidence from the PSID

We estimate the impact of the Great Recession of 2007–2009 on health outcomes in the United States. We show that a one percentage point increase in the unemployment rate resulted in a 7.8–8.8% increase in reports of poor health. In addition, mental health was adversely impacted. These effects were concentrated among those with strong labor […]

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Tracking wage inequality trends with prices and different trade models: evidence from Mexico

February 1, 2018

Mexican wage inequality rose following Mexico’s accession to the General Agreement on Tariffs and Trade/World Trade Organization in 1986. Since the mid-1990s, however, wage inequality has been falling. Since most trade models suggest that output prices can affect factor prices, this paper explores the rela- tionship between output prices and wage inequality. A Salter–Swan trade model with firm heterogeneity driven by […]

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