Amy Finkelstein

• 1. Introduction

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  Amy Finkelstein wanted to know whether health insurance actually made people healthier. It sounds like an obvious question. But for decades, economists could not answer it with rigor. The data was tangled, the variables were uncontrolled, and the ethical barriers to running a true experiment on people's medical coverage seemed insurmountable. Then Oregon stumbled into a natural experiment that changed everything, and Finkelstein was ready to catch it.

  Born on the 2nd of November 1973 in New York City, Finkelstein grew up with two biologist parents who had both earned doctorates at The Rockefeller University. That household shaped something in her: a conviction that hard questions deserve hard evidence. She would carry that conviction from a Harvard classroom to the halls of MIT, and eventually into the real lives of low-income adults waiting for a lottery to determine whether they could see a doctor.

• 2. From Government to Economics

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  Finkelstein studied government, not economics, when she arrived at Harvard University. She graduated summa cum laude in 1995 with a BA, and earned a Truman Scholarship along the way. What redirected her toward economics was a single course: Lawrence Katz's "Social Problems in the American Economy". Katz was a Harvard economist, and his class showed Finkelstein how the tools of economics could be aimed directly at the social questions she cared about.

  She left Cambridge for Oxford as a Marshall Scholar and earned an M.Phil. in economics in 1997. Then she returned to MIT, where she completed her PhD in economics in 2001 under the supervision of James M. Poterba and Jonathan Gruber, both prominent figures in public finance. After a stint as a Junior Fellow at the Harvard Society of Fellows that lasted three years, she joined the MIT faculty in 2005. She received tenure within three years of joining, a notably swift rise.

  By 2016, MIT's School of Humanities, Arts, and Social Sciences named her the John and Jennie S. MacDonald Professor, a five-year term established through a gift by Edmund MacDonald.

• 3. Oregon's Lottery

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  In 2008, Oregon did something unprecedented. The state had more people eligible for Medicaid than it had slots available, so it held a lottery to assign coverage to uninsured, low-income adults. For health economists, this was the closest thing to a controlled experiment that had ever existed at this scale. Finkelstein, working alongside Katherine Baicker and a larger group of researchers, moved quickly to design and evaluate it as exactly that.

  The Oregon Health Insurance Experiment became the first large-scale, randomized, controlled study of Medicaid in the United States. The findings were striking. Newly covered enrollees made more overall visits to health-care providers, including more trips to emergency rooms. Their financial exposure dropped: catastrophic medical expenditures and medical debts fell among the newly insured. Self-reported health improved, and cases of depression declined among new Medicaid beneficiaries.

  Finkelstein said the body of work, including this Oregon expansion, made her confident that health insurance improves health. The publications that followed became among the most cited in contemporary health policy studies. The experiment's methodology also proved something at least as important as its clinical findings: that randomized designs could be applied to the large-scale study of public insurance programs, a possibility that had not been demonstrated before.

• 4. Shaping the Affordable Care Act Debate

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  The timing of the Oregon experiment was not incidental to its influence. Its results fed directly into the national debate over Medicaid expansion that accelerated during and after the adoption of the Affordable Care Act. Finkelstein and Baicker served as the two principal investigators of the Oregon study, and the experiment transformed the empirical methodology of health economics as a field.

  Finkelstein's primary research focus sits at the intersection of public finance and health economics. She studies market failures and government intervention in insurance markets, and traces how public policy shapes health-care access and health outcomes. Her position as co-director of the NBER Health Care Program, a role she took on in 2020, placed her at the center of a program that had been launched in 2000 under Alan Garber to study markets for health care services, health insurance, and the provision of medical care. Garber later became provost of Harvard University.

  She also serves as co-Scientific Director of J-PAL North America, where she helps guide randomized evaluations of United States social policy, extending the experimental methods that shaped her Oregon work into a broader institutional setting.

• 5. Recognition and Awards

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  In 2008, the Committee on the Status of Women in the Economics Profession awarded Finkelstein the Elaine Bennett Research Prize for her contributions to the discipline. Four years later, in 2012, the American Economic Association gave her the John Bates Clark Medal. The Clark Medal citation described her research as "a model of how theory and empirics can be combined in creative ways", a phrase that captures the dual-track approach she had been developing since her graduate training under Poterba and Gruber.

  In 2018, she received a MacArthur "Genius" Grant and was elected to the National Academy of Sciences. The MacArthur fellowship carries no prescribed agenda; its purpose is to free recipients to work on whatever they judge most important. For Finkelstein, that freedom pointed toward the same questions she had been asking since Lawrence Katz's course in Cambridge: what does government intervention in insurance markets actually do to people's lives?

• 6. Family and Background

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  Finkelstein is Jewish and was born in New York City. Both of her parents were biologists who earned doctorates at The Rockefeller University. Her mother immigrated to the United States from Poland in 1940, and her maternal grandmother had earned a doctorate in comparative literature at the University of Warsaw before that emigration. The layering of academic generations in her family is notable: grandmother, mother, and daughter each carrying a doctorate across different continents, different centuries, and different disciplines.