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Why econ?

Economics seeks to understand choices and their consequences. Why save rather than spend? Why put certain products on sale and charge top dollar for another? Why purchase instead of rent? Researchers and students at the Stanford Institute for Economic Policy Research (SIEPR) choose to examine the world and make an impact through the prism of economics. In this ongoing series, we’ve asked them one question: Why econ?

Olivia Martin, PhD and JD student

It was sophomore year, and Olivia Martin thought she was staring at a typo on the whiteboard. On the first day of class for an economics seminar on measuring government performance through data, a presentation slide described the course using the plural, “governments.”

Until then, Martin had only considered Washington, D.C. to be ground zero for policymaking. But, as she soon came to appreciate, there are roughly 90,000 governments across the United States, and over the next 10 weeks, she and her classmates learned how to evaluate their effectiveness through statistics.

The Stanford course was an eye-opener, changing Martin’s belief that the science of economics and policymaking had little do with each other. “I had never put two and two together — that the people who shape what our policies as a country look like are all using the language of economics to set and justify their goals,” she says.

The course also marked a personal turning point. Martin grew up “a happy beach kid” in San Diego, the daughter of a neurologist who immigrated from Haiti as a teenager. Her father’s memories of living in a dictatorship gave Martin a heightened appreciation for democratic freedoms and inspired a passion for government policymaking as a tool for addressing social inequities. From her first day as an undergrad, she became deeply involved in — and eventually led — Stanford in Government (SIG), one of the university’s largest student groups.

The sophomore seminar on government performance taught her the importance of empirical evidence in designing and assessing policies. She subsequently declared economics as a major, and through the support of the Stanford Institute for Economic Policy Research (SIEPR), she had the opportunity to work on research projects and meet scholars and policymakers who explained how the tools of economics uniquely prepared them for government work. She also interviewed then-California Governor Jerry Brown as a moderator at an event sponsored by SIEPR and SIG.

Martin returned to the Farm in 2021 as a Knight-Hennessy Scholar to pursue a PhD in economics and a JD from Stanford Law School after working for two years at USAFacts — a nonprofit initiative launched by Steve Ballmer, who co-taught the inspirational government class. Her long-term goal? To shape policy through the lens of an economist — one who both understands the law and the personal experiences of the lives she’s working to improve.

Arjun Ramani, BA ’21, MS ’22

In 2005, when Shaquille O’Neal was in the NBA limelight, a young Arjun Ramani would bring in box scores for his first-grade show-and-tell to demonstrate how another Miami Heat player, up-and-comer Dwyane Wade, was also worthy of fandom.

Wade went on to garner the finals MVP award that season, and finished his career with three NBA championships and 13 All-Star appearances. Meanwhile, Ramani’s passion for statistical evidence grew.

The tenacity behind his serial sports stats show-and-tell sessions would similarly come in handy later during competitive debates in high school and for the Stanford debate team.

“It seemed that everything being debated in society required objective evidence to get beyond the noise of opinions where people talked past each other,” Ramani says.

Fast forward through the years — past a macroeconomics course at a summer camp before high school; past a 9th grade project on economist Milton Friedman; past two published computational modeling papers; and past a whirl of internships from the Council of Economic Advisers in Washington, D.C., to a trading desk in New York City — and it’s clear how Ramani’s appetite for data analysis has grown.

As an undergrad, Ramani played on Stanford’s club tennis team — never wavering from his love of sports — and was the data journalism editor at The Stanford Daily. He also co-founded the Stanford Open Data Project to streamline access to university-related data. And after taking a development economics course, he worked a summer in Ghana for a Stanford-based initiative to grow a mobile payment system.

Ramani examined the effects of COVID-19 on migration patterns and real estate for his honors thesis and co-wrote a SIEPR policy brief on the topic. He also worked as a SIEPR research assistant and helped develop the curriculum of a new Stanford course on the economics of AI.

Will it be game, set, match for econ?

Ramani, who studied math and computer science before declaring economics his junior year, is getting a master’s in CS and eyeing a PhD in economics.

“When I look out into the world and see all these controversial issues, I want to get to the bottom of them and figure out what's actually going on,” he says. “This is where economics shines.”

Marshall Burke, Senior Fellow

It takes a particular kind of economist to boast expertise “in doing nothing” — and to land on late-night TV because of it.

But Marshall Burke isn’t joking or trying to be self-deprecating. When he went on “The Daily Show with Trevor Noah” to share his insights into “doing nothing,” he was talking about the lack of progress in dealing with climate change and the social and economic costs of ignoring the problem.

Burke, a SIEPR senior fellow and an associate professor in the Department of Earth System Science, looks at a broad range of global warming’s effects on humans, including on physical and mental health, rates of violence, home property values, and workplace performance.

“Crank up the temperature and our cognitive function goes down,” Burke says by way of example.

Burke’s focus on doing nothing, which actually has him doing a lot, shows how the science of economics is evolving in the digital age. New tools and technologies are enabling economists to uncover insights that would not have been possible 10 years ago. And they are inspiring Burke and his colleagues to partner with scientists outside of economics to conduct ground-breaking research in the field, notably on issues around the environment and poverty.

One such multidisciplinary collaboration — which grew out a “spit-balling” coffee klatch he had with some Stanford computer scientists around 2014, the year he joined the Stanford faculty — has led to a powerful new tool that combines high-resolution satellite imagery with artificial intelligence to estimate poverty levels in African villages.

“We are now at a truly exciting time where we economists have the data to, in a much more granular way, look at long-running hypotheses about the main determinants of well-being and to answer questions that we haven’t been able to in the past,” says Burke, who also serves as deputy director of the Stanford Center on Food Security and the Environment.

Burke came to economics because he saw the potential to understand inequality in the world and to do something about it. He earned his B.A. in international relations from Stanford in 2003 and a PhD in agricultural and resource economics from UC-Berkeley in 2014.

Today, insights from Burke and his collaborators have garnered international attention. And, yes, that includes his stint on late-night television where he made clear the magnitude of his estimate that climate change — if unaddressed based on the goals of the Paris Agreement — would cost the U.S. economy $6 trillion in lost GDP by the end of the century.

“If $100 billion is a Jeff Bezos,” said Burke. “A trillion is like 10 Jeff Bezos’s.”

The line is good for a laugh — especially coming from someone in a field dubbed the “dismal science.” But it also demonstrates that the cost of doing nothing is far too high.

Aava Farhadi '23

When Aava Farhadi took AP microeconomics in high school, it was, admittedly, not love at first sight. At the time, her sights were stuck on pre-med.

But during her freshman year at the Farm, she fell for econ and became driven to find ways to empower small businesses and entrepreneurs, especially of underrepresented, under-resourced groups.

The change of heart came after she felt something was missing amid her pre-med courses. She spoke to her parents, who advised her to not be afraid of exploring options.

Farhadi’s mother, Baran Elahi, and her grandmother, Etrat Elahi, owned and operated a family cookie business. The operation stemmed from Etrat’s knack for baking and — more importantly — their need to financially support the family once they arrived in America from Iran just before the country’s 1979 revolution.

The business soon expanded from small-batch sales from their kitchen into a popular cookie shop in suburban California. Then came a wholesale business that sold to companies like Neiman Marcus and Whole Foods.

Reminded of her family’s economic story, a new interest was sparked for Farhadi.

The tale epitomized the so-called American Dream, but also illustrated inequities in a system not particularly friendly or helpful to women and underrepresented minorities who needed loans, advice and support to establish a business.

“The whole ‘pulling-up-by-the-bootstraps’ theory, is false,” says Farhadi, a first-generation Iranian American. “I think more people are seeing that that narrative is problematic and are looking at the structure and oppressive systems in place, and what we can do as individuals to fix that.”

Following her mother’s tip to explore, Farhadi took Econ 1, which cast economics in a whole new light. What could have just been a flirtation has since turned into a hard-core relationship.

“Understanding economic structures is so crucial to understanding everything else. I had underestimated that, but finally found that missing link,” she says. “Once I figured out that I can combine all my interests in this one field of economics, I was just blown away.”

Today, Farhadi is a leader in Stanford Women in Business, and has introduced changes to make its leadership summit more accessible to high school students from minority and lower-income backgrounds.

Before starting her sophomore year, she was a research assistant at SIEPR, working on a project examining COVID-19 health policies. She also interned at HerCapital, a nonprofit that helps educate women in financial management. The job gave her experience and also an important insight.

“This is what my grandmother and mother needed,” she says.

And she’s working to ensure more women have it.

Levi Boxell, PhD student

Levi Boxell grew up wanting to be an engineer or a computer scientist. But his career path took a turn toward economics during his senior year in high school when perspectives of poverty and the role of economics research began to swirl together.

His father started a new fundraising job working at a community center in a low-income area of Indianapolis. Around the same time, Boxell was in a required economics class and landed an internship at a think tank to do research on international development issues.

A new interest in finding solutions to poverty set in and led Boxell to major in development economics and math at Taylor University.

“Economics gives you a set of tools to think about and understand the world,” he says. “And a lot of the Econ 101 topics — such as thinking on the margin, ignoring sunk costs, and diminishing returns — I find useful for thinking about decisions outside the academic realm in day-to-day life.”

Now, as an econ PhD student at Stanford, Boxell says — without a doubt — that economics suits him. He’s a National Science Foundation Graduate Research Fellow. He was among the first predoctoral fellows at the Stanford Institute for Economic Policy Research (SIEPR). And he was awarded the McKinnon Memorial Fellowship by the Stanford King Center on Global Development.

“I find working with data easier than working with people, so that matches my personality, I guess,” he says. But more importantly, Boxell appreciates how tying empirical economic analysis to answering important questions provides an approach to solving some big problems.

“A lot of it has to do with choosing the right questions, then presenting the results in a manner that’s easily understood by people who might not have training in economics,” he says.

Crunching through mounds of data as a SIEPR predoc — which led to co-authorship of two widely cited papers on America’s growing political polarization — further fanned his passion for studying political economy.

His current research focus is on the interplay between conflict, information technology, polarization and development economics.

“It’s exciting to see how research can kind of shape the public discussion on these topics,” he says.

Petra Persson, Faculty Fellow

A lot in life ties to family.

That’s why Petra Persson centers her economic research on the interplay between family and policies — how family structure and decisions are influenced by government actions, and vice versa.

“We live in a world that has an increasing focus on the individual, but the reality, I think, is that the family matters crucially,” Persson says. “We know, for example, that the socioeconomic circumstances of the family you're born into is strongly correlated with economic well-being and health outcomes.”

At Stanford, in her undergraduate course on family and society, Persson explains how analytical tools in economics can help flesh out a better understanding of problems and point to solutions.

She tells her students about a public health ad, plastered across subways in New York while she did her PhD at Columbia University, which featured a sad baby and the message, “I am twice as likely to not graduate high school because my mom had me when she was a teenager.”

The ad could be viewed two ways, she tells them. One implies teen pregnancy causes problems; the other suggests a symptom of bigger underlying issues, such as opportunity constraints for disadvantaged youths.

“It’s not enough to just learn about a correlation,” Persson says. “We need to know the direction of causality to deliver actionable insights. It’s what matters for policy.”

Persson was born and raised in Sweden by parents who were both middle school teachers. The second-youngest of six siblings, she grew up in a society where government funds healthcare and education. Yet, even with generous public safety nets, she says, disparities exist; the poor die younger and are less healthy than their richer counterpart.

That understanding has driven her research.

One of Persson’s earlier studies — cited in the 2016 Economics Report of the President — showed how stress during pregnancy affects the child’s mental health later in life. A more recent study showed that individuals with informal access to medical expertise through a family member who is a doctor or nurse are healthier and live longer, while another documented that health-related expertise in society is increasingly concentrated to fewer and fewer families – or “medical dynasties” – over time.

“Social issues drew me to study econ, and I was a save-the-world type of person when I started in college,” Persson says. “Then at some point I realized you don't have to look to the developing world to find important social problems and a large gap between the haves and the have-nots.”

Heidi Williams, Senior Fellow

Heidi Williams started thinking like an economist as an undergraduate student. But it wasn’t an econ course that inspired her. It was a discussion in biology class about the developing world’s struggle with malaria.

“The fact that malaria is a problem in poor countries but not rich ones intrigued me, and I started doing some research,” Williams says.

That led her to discover a paper by Michael Kremer, an economist who would later become one of her mentors and a 2019 Nobel Prize winner. Kremer’s paper proposed a way for governments and private foundations to incentivize drug companies to develop malaria vaccines. His work essentially made the case that a compelling solution to curbing the disease could exist in the marketplace. Williams was hooked.

“I immediately realized that economics has a natural language and toolkit for addressing important social problems in a really practical way,” Williams said.

After graduating from Dartmouth as a math major, Williams headed to Oxford for a master’s in economics. She then received her PhD in economics at Harvard, and focused her research on the causes and consequences of technological change, particularly in health care markets.

Her work earned her a MacArthur “genius grant” and an Alfred P. Sloan Research Fellowship during her tenure as an economics professor at MIT. After two separate stints as a faculty visitor at the Stanford Institute for Economic Policy Research (SIEPR), Williams decided she wanted to make her academic home here. She joined the Stanford faculty in 2019 as the Charles R. Schwab Professor of Economics and is one of SIEPR’s newest senior fellows.

Along with her robust research agenda, Williams is also committed to encouraging the next generation of economists and working with students who are — as she puts it — “save-the-world types” wanting more experience before committing to a career in economics.

“I’m looking for students who have a passion for really making a difference in the world,” she says. “Just about anyone can learn the skills and tools of economics, but the passion is what is most important.”

David Chan, Faculty Fellow

Being a doctor and caring for patients, one-by-one, is a rewarding career. But what if your profession can improve the lives of many people, all at once?

That humanistic challenge is what inspired David Chan to take a hiatus from medical school to get a master’s in health policy — and a master’s and a PhD in economics — before completing his MD. And it’s what motivates him today as he juggles being an economist, doctor, and professor.

“The thing that appealed to me about economics is how you can help large groups of people as opposed to just the person in front of you,” Chan says from his office at Stanford Health Policy, a short walk from SIEPR where he is a faculty fellow.

“Economics is fundamentally about people — the fact that people drive things, and we are designing policies to make the welfare of people better. That’s also something that we share in medicine — the business of helping people.”

No surprise — Chan is a health economist. And he is amid a growing group of economists developing groundbreaking insights into the delivery of health care.

“We know so much about the financing of health care from decades of research, but there's just a dearth of research in the delivery of it,” he says. “And now that we have a wealth of new data to start studying this, we can open the black box and literally ask why some hospitals spend less but have much better outcomes. We can really see what people are doing inside these hospitals.”

Chan’s research projects, for example, have found how emergency room doctors are more likely to quickly order costly tests when they’re about to end their shifts, and that the typical practice of relying on triage nurses to assign patients to ER doctors is far less effective than doctor-managed assignments.

In another study, Chan found significant cost differences between pneumonia cases handled by lower-skilled versus higher-skilled radiologists. The findings suggests more uniform policies for training.

“The currency of moving policy forward is increasingly going to be in the hands of those who can make recommendations based on data and analytics, and economics is definitely a field that has kept pace with that,” he says.

Bessie Zhang, '23

Bessie Zhang’s eyes light up when she talks about currency swaps and financial instruments. But it’s not money that excites her. It’s what’s behind it all that intrigues her.

Ever since the Stanford sophomore read “Sapiens: A Brief History of Humankind” in high school, she has been captivated by the notion of the trust and value people put into a piece of paper with George Washington’s face on it. The book, which explores how the imagination makes humans more powerful over other animals, anchored her passion for economics.

“Econ signifies to me why we, as a group of animals, are much more powerful. It’s because of this imagination and these complicated webs we’re able to create,” she says. “Then what fascinated me more was how in this web we created — of credits, of trust, of exchange — we still don’t completely understand it. We try to predict it, but no matter how close we get to the predictions, this thing always morphs into something else.”

In high school, Zhang couldn’t get enough of econ, so she ventured to the nearby University of Chicago to take macroeconomics on top of the AP microeconomics course offered at her school. And she co-founded the school’s first economics investment team to compete at policy debate tournaments across the U.S. and help expose peers to the fact that economics is about behavior and decision-making as much as it is about dollars and markets.

By the time she was 18, Zhang had an array of economic-related notches on her belt. Economic policy debate champion. Research intern at a futures exchange company. Youth diplomat — leading economic-focused workshops as an ambassador of Chicagoland for the U.S. Department of State. And a modeler in international and local mathematical modeling contests.

During her first year at Stanford, Zhang’s economic horizons broadened. Her Thinking Matters class was on cancer, and she wrote her paper on the health care system and cancer treatments. This past summer before starting her second year at Stanford, she worked both as a finance research assistant at the Stanford Graduate School of Business as well as an intern at a hedge fund.

“I like to incorporate econ in my life,” she says. “It’s so broad I can apply it to everything.”

Zhang feels lucky she knew at an early age how studying economics would be a foundation for her endeavors. Now — as she gets guidance from her public policy and applied math professors — it’s a matter of deciding a path to pursue.

Valerie Scimeca, '20

Valerie Scimeca’s first lesson about an economy came in the third grade.

But it wasn’t a teacher’s assignment that made much of an impression. Rather, it was the struggles she saw her father having with his real estate development business. The year was 2007, and the Great Recession was just hitting.

“Economics wasn’t this distant idea from my third-grade report, it was very real,” she says.

Today, Scimeca’s view of economics — what she considers the science of decisions — is far more sophisticated. When she took Econ 1 during her first year at Stanford in 2016, she immediately knew economics would be her major.

The Illinois native — the first in her family to go to college — had been initially considering going into computer science. But the introductory econ course won her over. The concepts of the discipline resonated with her, everywhere in life.

“They say I could have already gotten an entry-level job at Google after I finished CS106B, but it was the ideas of econ that kept rattling around in my mind — probably because the things I was learning were providing explanations for the world,” she says.

Scimeca also found it rewarding to work as an undergraduate research assistant at SIEPR. The experience exposed her to empirical research on life expectancy rates, and health and labor gaps.

“There are real people at the end of that data,” she says.

Scimeca, who received a master’s in Management Science and Engineering and is pursuing a career in finance, says her studies in economics have equipped her with a problem-solving foundation.

“I'll probably never need to draw a supply-and-demand graph in 20 years, but it's that framework that lets you think about the world in a different way, in a deeper way,” she says.

“I’m recommending econ to everybody. You can find the things in econ that click with you because you could use it for everything, and you can supplement anything you study with econ. It’s very versatile.”

Nina Buchmann, PhD student

Nina Buchmann’s interest in global economic inequality and its relationship to gender took root early.

Her family was living in civil war-torn Sri Lanka when she was born, and the exposure to economic disparities and the surrounding violence compelled her, years later, to work in the slums of India after high school for an NGO that assisted women and children with HIV.

And when Buchmann did her undergraduate education, she planned to study international relations with the idea of launching a career fighting war crimes.

But after some friends encouraged her to take an introductory econ class, she found a different way to make an impact.

“I loved the course. I loved the empirical and evidence-based approach to poverty and development,” she says. “So I knew I would still do development, but I would be an economist — a development economist.”

The tools of economics, Buchmann says, open up different ways of examining very specific issues.

Buchmann followed her bachelor’s degree in economics with a master’s in development economics. In between that time, as she worked as an analyst at the trade and development arm of the UN, the prevalence of violence — including violence outside of war — resurfaced on her radar.

After getting her master’s degree, Buchmann turned to doing research at the Jameel Poverty Action Lab (J-PAL) at Duke University. And now, as a graduate student at Stanford, Buchmann has garnered a “best paper” award and research fellowship grants from SIEPR and the Stanford King Center on Global Development among others for her projects that seek to shed light on factors behind discrimination and domestic violence.

“Understanding why violence decreases with income is key to identifying interventions,” Buchmann says.

The bulk of her work has thus far focused on evidence from Bangladesh, but Buchmann sees gender discrimination across rich and poor countries alike.

“If there’s something you think is important, and you think people should think and do more about it, you can study it,” Buchmann says. “I think I want to keep doing that.”

Why Econ