Health and Medicine

FSI’s researchers assess health and medicine through the lenses of economics, nutrition and politics. They’re studying and influencing public health policies of local and national governments and the roles that corporations and nongovernmental organizations play in providing health care around the world. Scholars look at how governance affects citizens’ health, how children’s health care access affects the aging process and how to improve children’s health in Guatemala and rural China. They want to know what it will take for people to cook more safely and breathe more easily in developing countries.

FSI professors investigate how lifestyles affect health. What good does gardening do for older Americans? What are the benefits of eating organic food or growing genetically modified rice in China? They study cost-effectiveness by examining programs like those aimed at preventing the spread of tuberculosis in Russian prisons. Policies that impact obesity and undernutrition are examined; as are the public health implications of limiting salt in processed foods and the role of smoking among men who work in Chinese factories. FSI health research looks at sweeping domestic policies like the Affordable Care Act and the role of foreign aid in affecting the price of HIV drugs in Africa.

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A new SIEPR policy brief examines the growing life expectancy gap between low-income and high-income Americans. Coauthored by Victor R. Fuchs and APARC Deputy Director Karen Eggleston, the brief shows that life expectancy in the U.S. can be increased if health policy shifts towards preventing the leading causes of death for young people. READ MORE>>

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We analyze the effects of early-life shocks with varying degrees of severity on mortality and human capital outcomes in the Philippines. We exploit variations in typhoon exposure and the introduction of a short-term post-disaster relief policy. Severe
typhoons are associated with increased mortality and adverse long-term outcomes. Before the disaster relief policy, mortality from in utero exposure to severe typhoons was 10 percent, and survivors exhibited similar levels of human capital as the unaffected.
Once implemented, the policy appears to have mitigated the mortality effect of severe typhoons, and survivors have lower human capital in the long term.

Keywords: fetal origins hypothesis, selective mortality, long-term outcomes, Philippines, natural disasters, disaster relief

JEL codes: I12, I15, O15

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Asia Health Policy Program working paper # 50
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Although many public hospital physicians in Vietnam offer private service on the side, little is known about the magnitude and nature of the phenomenon of so-called dual practice, let alone the dynamics between the public and private health sectors. This study investigates how and to what degree public hospital physicians engage in private practice. It also examines the commitment of dual practitioners to the public sector. The analysis is based on a hospital-based survey of 483 physicians at 10 public hospitals in four provinces of Vietnam. Nearly half of the participants in the study sample reported themselves as dual practitioners. Various types of private practice were mentioned. Private practice at health facilities owned by the private sector was the most prevalent, followed by private practice delivered at health facilities owned by the dual practitioners themselves. Private practice inside public hospitals was also noted. Dual practitioners were likely to be senior and hold management positions inside their public hospitals. Substantial income differences were found between dual practitioners and those physicians practicing in only the public sector. The majority of dual practitioners, however, reported the willingness to give up private practice if certain conditions were met, such as a basic salary increase or non-pecuniary benefits. The main reasons dual practitioners gave for not leaving the public sector included a sense of public responsibility and opportunities to gain a broader professional network and more training. This study reiterates the significant challenges associated with dual practice, including its financial implications and possible effects on health care quality and access. The need for a high-quality workforce committed to the public sector is particularly critical, given the
possibility of universal insurance coverage. Future research should address the need to improve data collection on physicians’ dual practice and incorporate the topic in policy debates on health reform.

Keywords: physician dual practice, public-private mix, Vietnam, human resources for health, hospital reform, health system research, low- and middle-income countries, universal health coverage.

Published: https://academic.oup.com/heapol/article/33/8/898/5078580

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Asia Health Policy Program working paper # 49
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High costs of precision medicine raise concerns about exacerbating income-related disparities in healthcare utilization and health outcomes. One approach to expanding coverage in Asia has been to cover the precision therapy but require the pharmaceutical firm to cover the costs of the companion diagnostic test. Taiwan’s National Health Insurance (NHI) adopted this approach for lung cancer, colorectal cancer and leukemia, but not for the first target therapy covered by NHI, trastuzumab for the treatment of HER2-positive breast cancer. Analyzing a unique dataset linking medical claims, cancer registry data and proxies for income between 2004 and 2015, we find that lower-income patients are more likely to be diagnosed with later stages of breast cancer, and this pattern renders NHI coverage of anti-HER2 therapy pro-poor even before full coverage of the diagnostic tests.

Moreover, the expansion of NHI coverage—including the FISH diagnostic test and trastuzumab for early-stage breast cancer—strengthened the pro-poor distribution of genetic testing and target treatment, albeit only marginally. The extent of pharmaceutical company coverage of testing and its impact on patient access are topics of our ongoing research, contrasting breast cancer with colorectal cancer.

Keywords: disparities, personalized medicine, income-related inequality, breast cancer, genetic testing, Taiwan, Asia

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Asia Health Policy Program working paper # 48
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The major objectives of this paper are: 1) to investigate how local nutritional availability in early childhood and in adolescence affected health and human capital development; 2) to explore if improved nutrition in adolescence could mitigate the negative effects of early-life exposure to negative health shocks generated by the Korean War; and 3) to understand how increased nutritional supply contributed to the improvement in health in South Korea from 1946 to 1977.

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Chulhee Lee is professor of economics at Seoul National University. After receiving his doctoral degree from University of Chicago in 1996, he taught at SUNY Binghamton before he returned to Seoul in 1998. His major research topics are economic status and labor-market behaviors of older persons; and interactions of ecological environment, socioeconomic status, and health over the life course. Lee has been involved with the management of the NIH-funded Early Indicators project since 2001 as project leader and senior investigator, which constructed and analyzed longitudinal data on Union Army soldiers. He has also participated in various projects of creating and studying new data in Korea, such as the Korea Longitudinal Study of Aging (KLOSA), the panel data on the Korean Health Insurance, and the sample of military records in Korea. Lee’s research on the health and retirement of US Civil War soldiers has been published in American Economic Review (1998), Journal of Economic History (1998, 2002, 2005, 2008), Explorations in Economic History (1997, 1998, 2007, 2012), and Social Science History (1999, 2005, 2009, 2015). He has also published paper on retirement of Koreans in Economic Development and Cultural Change (2007) and Journal of Population Ageing (2013). His recent work on the effects of in-utero exposure to the Korean War, recessions, and the 1980 Kwangju uprising appeared in Journal of Health Economics (2014), Social Science and Medicine (2014), Health Economics (2017), and Asian Population Studies (2017).

Chulhee Lee Department of Economics, Seoul National University
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About 88 percent of India’s total labor force is composed of informal (officially labeled “unorganized”) workers. As many as 388 million such workers lack old age income security by way of a pension system. The Atal Pension Yojana (APY) is the latest contributory, national-level old age pension scheme for unorganized workers, with an entry age of 18–40 years. In other words, all current unorganized workers above the age of 40 are excluded. How could a national pension system viably guarantee equal pension benefits to all current unorganized workers? This paper considers how such a system might work by offering a case study of a non-contributory pension scheme for building and other construction workers in Karnataka State, India. The results indicate that this state-level pension scheme, fully funded by sector-specific receipts, is financially viable and sustainable with high levels of coverage and adequacy. The robustness of these results is shown via sensitivity analyses of discount rates, inflation rates, and growth rates of specific purpose tax collections. Additional analyses outline the scenarios under which pension benefits could be extended to all informal workers in the sector studied.

Keywords: Informal sector workers, pensions, India, Atal Pension Yojana

JEL codes: H55, J18

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Asia Health Policy Program working paper # 47
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Co-sponsored by the Asia Health Policy Program and the Southeast Asia Program

Achieving universal health coverage is one of the UN's Social Development Goals. The four countries in the lower Mekong region, Thailand, Vietnam, Laos, and Cambodia, have made good progress on the expansion of health insurance coverage. However, the statistics on how many people are covered and protected could be misleading, especially for vulnerable populations more likely to be left out. Using data from national surveys, a cross-country analysis shows the situation regarding health service access and health care payments among vulnerable populations in the four countries. Conditions and trends in health care utilization, and health payments and their impact on vulnerable populations will be reviewed and linked to policy implications. Pitfalls and successes in a region marked by diversity and unequal opportunity will also be explored.

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Dr. Piya Hanvoravongchai teaches health systems and health economics at Chulalongkorn University in Thailand. He is also a co-director of the Equity Initiative in Southeast Asia and a member of the Strategic Technical Advisory Committee of the Asia Pacific Observatory on Health Systems and Policies.

Piya Hanvoravongchai Faculty of Medicine, Chulalongkorn University, Bangkok
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Using previously unexamined nationally representative data from the Philippines, this study employs detailed measures of children’s welfare and addresses biases related to endogeneity of parental migration to examine the wellbeing of left-behind children. The results are robust across several econometric methods (treatment effects, biprobit, PSM, PSM-IV). They suggest that migrants’ children have better educational outcomes and are less likely to work, but are more likely to be physically sick, which cognitive stress theory would attribute to parental migration as a stressor. Still, the positive impacts of parental migration, attributable to income effect, outweigh the negative effects attributable to parental absence. The results also show heterogeneity in the impacts of parental migration conditional on children’s gender.

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Dr. Marjorie Pajaron is an Assistant Professor at the School of Economics, University of the Philippines. Prior to her appointment, she was a Postdoctoral Fellow at Stanford University’s Walter H. Shorenstein Asia-Pacific Research Center. She also served as a lecturer at the University of Hawai’i at Manoa Department of Economics where she also received her PhD in Economics. Her research lies at the intersection of applied microeconometrics, gender, health, migration, and development economics.

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Visiting Scholar at APARC, 2026
Asia Health Policy Postdoctoral Fellow, 2012-2013
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Marjorie Pajaron joined the Walter H. Shorenstein Asia-Pacific Research Center as Visiting Scholar beginning April 2026 through July 2026 from the University of the Philippines Diliman (UPSE), where she serves as Associate Professor in the School of Economics. She was previously at APARC as Asia Health Policy Postdoctoral Fellow during the 2012–13 academic year.

While at APARC, she conducted research on the migration of healthcare workers from the Philippines and the nexus with climate change.

Pajaron received a PhD in economics from the University of Hawai’i at Manoa.

Publications:

Ramel, R. C. D., Legaspi, J. D., & Pajaron, M. C. (2026). Illuminating the land: the effects of nighttime lights on land values in the Philippines. Remote Sensing Letters, 17(5), 465–477. https://doi.org/10.1080/2150704X.2026.2650396

Pajaron M, Vasquez GN. (2023). Weather, Lockdown, and the Pandemic: Evidence from the Philippines. Philipp J Sci 152(S1): 47–62. https://doi.org/10.56899/152.S1.04

Pajaron, M.C., Vasquez, G.N.A. (2020). Weathering the storm: weather shocks and international labor migration from the Philippines. Journal of Population Economics 33, 1419–1461. https://doi.org/10.1007/s00148-020-00779-1

Pajaron, M. (2017). “The Role of Remittances as a Risk-Coping Mechanism: Evidence from Agricultural Households in the Philippines.” Asian and Pacific Migration Journal 26 (1): 3–30. https://doi.org/10.1177/01171968166806

Pajaron, M. (2016). “Heterogeneity in the Intrahousehold Allocation of International Remittances: Evidence from Philippine Households.” Journal of Development Studies 52 (6): 854–875. https://doi.org/10.1080/00220388.2015.1113261

 

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Assistant Professor at the School of Economics, University of the Philippines
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Interventions designed to improve primary care management of diabetes and reduce avoidable hospital admissions show promise for saving healthcare resources without compromising quality of care. These are the findings made by an international research team’s study of four East Asian sites.

With a fourfold increase in global diabetes prevalence over the past thirty-five years (2016 Lancet report), countries are increasingly experiencing the dual health challenges of chronic noncommunicable diseases and aging populations. An estimated 12 percent of global health expenditures in 2015 was for diabetes-related services.

The study, published in the November issue of Health Affairs, examined policy interventions in Japan, Singapore, Hong Kong, and rural and peri-urban Beijing; by increasing access and adherence to effective outpatient management, the interventions potentially improved health outcomes while realizing cost savings from reduced avoidable hospital admissions.

“This article represents the first publication in a series of research collaborations under the Stanford AHPP-led comparative diabetes net value project,” said Karen Eggleston, Asia Health Policy Program Director and one of the article’s authors.  “We are assembling and analyzing rich patient-level datasets, using diabetes as a lens to explore ‘value for money’ in chronic disease management. “

Eggleston also noted that additional research teams have joined since the publication. The authors look forward to contributing evidence for improved health policy in different institutional contexts and for health systems adapting to rapidly aging populations. 

Read the study (may require subscription)

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Objective: Reducing rural-urban disparities in health and health care has been a key policy goal for the Chinese government. With mental health becoming an increasingly significant public health issue in China, empirical evidence of disparities in the use of mental health services can guide steps to reduce them. We conducted this study to inform China’s on-going health-care reform through examining how health insurance might reduce rural-urban disparities in the utilization of mental health inpatient services in China.

Methods: This retrospective study used 10 years (2005–2014) of hospital electronic health records (EHRs) from the Shandong Center for Mental Health (SCMH) and the DaiZhuang Psychiatric Hospital (DZPH), two major psychiatric hospitals in Shandong Province. Health insurance was measured using types of health insurance and the actual reimbursement ratio (RR). Utilization of mental health inpatient services was measured by hospitalization cost, length of stay (LOS), and frequency of hospitalization. We examined rural-urban disparities in the use of mental health services, as well as the role of health insurance in reducing such disparities.

Results: Hospitalization costs, LOS, and frequency of hospitalization were all found to be lower among rural than among urban inpatients. Having health insurance and benefiting from a relatively high RR were found to be significantly associated with a greater utilization of inpatient services, among both urban and rural residents. In addition, an increase in the RR was found to be significantly associated with an increase in the use of mental health services among rural patients.

Conclusion: Consistent with the existing literature, our study suggests that increasing insurance schemes’ reimbursement levels could lead to substantial increases in the use of mental health inpatient services among rural patients, and a reduction in rural-urban disparities in service utilization. In order to promote mental health care and reduce rural-urban disparities in its utilization in China, improving rural health insurance coverage (e.g., reducing the coinsurance rate) would be a powerful policy instrument.

Published, available at: https://link.springer.com/content/pdf/10.1007%2Fs10754-018-9238-z.pdf

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