How Esther Duflo Changed Economics and Won a Nobel Prize
Big theories often fail to solve poverty. Discover how Esther Duflo uses small-scale trials to find what works and why she views herself as a plumber.
Best quote from How Esther Duflo Changed Economics and Won a Nobel Prize
Instead of asking, 'How do we end global poverty?'—which is an impossible question to answer—they started asking much more precise, well-defined questions. By making the question smaller, the answer becomes much more reliable.
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Want to learn about personal life of esther duflo and how she developed her approach for which she won nobel prize. And more about the approach
Frequently Asked Questions
This concept refers to a focus on the actual mechanics of how policies work on the ground rather than just relying on abstract economic theories. Duflo believes that economists should act like plumbers by getting into the "pipes" of a system to see which specific parts are broken. Instead of trying to solve global poverty with one "silver bullet," this approach involves asking small, precise questions—such as how to increase vaccination rates—and using randomized controlled trials to find reliable, practical solutions.
In a study in Rajasthan, researchers found that low immunization rates weren't caused by a lack of interest in health, but by the high "cost" of travel and time for parents. By providing a small, immediate incentive—a one-kilogram bag of lentils for each visit—the researchers were able to nudge parents to overcome these daily hurdles. This small intervention caused vaccination rates to jump from six percent to thirty-nine percent, and actually lowered the overall cost per immunized child because the fixed costs of the clinics were spread across a much larger group of people.
Duflo’s work challenged the idea that a family acts as a single unit with shared goals. In a study of South African pensions, she discovered that when grandmothers received pension money, the health and nutrition of granddaughters improved significantly. However, when grandfathers received the same pension, there was no measurable improvement in the children's health. This evidence suggests that women are more likely to prioritize the well-being of the next generation, leading many countries to direct social assistance payments specifically to mothers.
Inspired by clinical trials in medicine, RCTs involve taking a social program and testing it in the real world with two groups: a treatment group that receives the intervention and a control group that does not. Participants are randomly assigned to these groups to ensure that any differences in outcomes are caused by the program itself rather than outside factors. This method allows economists to identify exactly which "levers of action"—like deworming pills or school textbooks—are the most effective and worth scaling up globally.
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From Columbia University alumni built in San Francisco
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"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."
"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."
"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."
"Reading used to feel like a chore. Now it’s just part of my lifestyle."
"Feels effortless compared to reading. I’ve finished 6 books this month already."
"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."
"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."
"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"
"It is great for me to learn something from the book without reading it."
"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."
"Makes me feel smarter every time before going to work"
"Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."
"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."
"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."
"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."
"Reading used to feel like a chore. Now it’s just part of my lifestyle."
"Feels effortless compared to reading. I’ve finished 6 books this month already."
"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."
"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."
"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"
"It is great for me to learn something from the book without reading it."
"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."
"Makes me feel smarter every time before going to work"
"Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."
"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."
"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."
"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."
"Reading used to feel like a chore. Now it’s just part of my lifestyle."
"Feels effortless compared to reading. I’ve finished 6 books this month already."
"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."
"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."
"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"
"It is great for me to learn something from the book without reading it."
"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."
"Makes me feel smarter every time before going to work"
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