What is *Poor Economics* by Abhijit Banerjee and Esther Duflo about?

*Poor Economics* challenges traditional poverty solutions by advocating for micro-level, evidence-based policies tailored to local contexts. Using behavioral economics and randomized control trials, the authors analyze how the poor make decisions about food, healthcare, education, and finance, arguing that small, incremental changes—not grand theories—drive sustainable progress.

Who should read *Poor Economics*?

This book is essential for policymakers, economists, and NGOs working on poverty alleviation, as well as students studying development economics. It’s also valuable for general readers interested in understanding the complexities of global poverty through real-world case studies and data-driven insights.

Is *Poor Economics* worth reading?

Yes. The book combines rigorous research with relatable narratives, offering actionable insights into poverty reduction. Bill Gates praised it as a “refreshing” departure from theoretical debates, highlighting its focus on practical, localized solutions.

What are the main arguments in *Poor Economics*?

Key arguments include: prioritizing context-specific policies over universal fixes; leveraging behavioral economics to understand poor households’ decisions; and advocating for incremental, evidence-backed interventions. The authors also emphasize that poverty persists not due to laziness but systemic barriers and rational resource allocation under constraints.

How does *Poor Economics* address hunger and nutrition?

Contrary to stereotypes, the book reveals that many poor individuals prioritize taste and variety over caloric intake, leading to underinvestment in nutritious food. This “nutrition-based poverty trap” undermines productivity, requiring targeted interventions like fortified staples or education on dietary choices.

What role do behavioral insights play in the book?

The authors show how cognitive burdens—like stress from financial instability—lead to counterintuitive decisions, such as borrowing to save or skipping free healthcare. Policies must account for these psychological factors, such as using nudges to encourage vaccinations or savings.

Does *Poor Economics* support microcredit as a solution?

While microcredit has benefits, the authors argue it’s not a panacea. Loans often fund consumption, not entrepreneurship, and high repayment pressures can exacerbate stress. They advocate for hybrid models combining credit with insurance or savings incentives.

How does the book critique top-down aid programs?

Banerjee and Duflo criticize large-scale programs for ignoring local realities, like parents’ misunderstanding of education’s linear returns. Successful aid requires testing interventions (e.g., deworming pills, teacher accountability) through randomized trials.

貧乏人の経済学

裸足のヘッジファンド・マネージャー、DIYドクター、そして1日1ドル未満で暮らす生活に関する驚くべき真実

アビジット・V・バナジー

4.27(23871 Reviews)

『貧乏人の経済学』の概要

ノーベル賞を受賞した経済学者たちが、世界の最貧困層が従来の常識を覆すような意思決定をどのように行っているかを明らかにします。親密な対話と厳格な実験を通じて、彼らは世界中の政策立案者に影響を与えた、世界的な貧困に対する驚くべき解決策を見出しました。10億人を困窮から救い出す可能性のある、直感に反するアプローチとは何でしょうか？

語り方を選ぶ

1冊の本。さまざまな聴き方。

貧乏人の経済学の同じアイデアを、あなたに合う声・深さ・ペースで学べます。いつでも切り替えられます。

第1章

The Economics of Poverty: A Revolutionary Perspective

Have you ever wondered why, despite billions in aid and decades of effort, global poverty persists? What if our fundamental assumptions about the poor are wrong? In "Poor Economics," MIT economists Abhijit Banerjee and Esther Duflo challenge conventional wisdom with evidence from 15 years of groundbreaking field research. This isn't just another development economics book-it became an instant classic that revolutionized how we approach poverty, winning Banerjee and Duflo the 2019 Nobel Prize in Economics alongside Michael Kremer. Through vivid stories and rigorous experiments across five continents, they reveal the sophisticated economic lives of those living on less than $1 per day. Their approach rejects grand theories in favor of understanding the specific challenges faced by real people, showing how small changes can create enormous impacts. As Bill Gates noted, "Their work is both revolutionary and accessible... they offer a refreshingly original take on how to fight global poverty."

第2章

Beyond Hunger: The Complex Reality of Food and Nutrition

For many Westerners, poverty conjures images of starvation-people desperately needing more calories. This association drives massive government food subsidy programs worldwide, from Egypt's $3.8 billion annual expenditure to India's proposed Right to Food Act. The underlying theory suggests a nutrition-based poverty trap: the poor can't afford enough food, making them less productive, keeping them poor. Yet the evidence tells a more nuanced story. When poor households get additional income, they don't maximize calories. In Maharashtra, a 1% increase in overall expenditure translated to just 0.67% increase in food spending. Even more revealing, when spending on food increases, people buy better-tasting, more expensive calories rather than maximizing nutrition. In a Chinese study, households given staple food subsidies actually consumed less of those items, choosing to eat more shrimp and meat instead. This doesn't mean nutrition isn't problematic. South Asians are notably small-statured-33% of Indian men and 36% of women were undernourished by BMI standards in 2004-2005. Child malnutrition in India is devastating-half of children under five are stunted, with rates roughly double those in sub-Saharan Africa. This malnutrition has consequences beyond physical stature, affecting cognitive development and adult earning potential. Why don't the poor invest in better nutrition? One explanation is that the benefits aren't always visible or immediately rewarded. The Indonesian study on iron supplementation found that self-employed workers earned $46 more annually from a $7 investment in iron-fortified fish sauce-but only self-employed workers saw this benefit. Employees paid flat wages had no financial incentive to improve productivity through better nutrition. The poor also have other priorities beyond food. In Morocco, we met Oucha Mbarbk who, despite claiming he needed more money for food, owned a television, parabolic antenna, DVD player, and cell phone. When questioned about this apparent contradiction, he laughed and said, "Television is more important than food!" His perspective made sense in context-village life can be monotonous with limited entertainment options. While nutrition-based poverty traps don't appear to affect most adults, nutrition remains critical for those who don't choose what they eat: unborn babies and young children. Small nutritional investments during childhood yield enormous returns later. This suggests governments need to rethink food policy beyond simply supplying more grains, focusing on micronutrients, deworming programs, and fortified foods.

聴きながら、すべての言葉を目で追えます

『貧乏人の経済学』の一語一語が音声に合わせてリアルタイムでハイライトされ、自然に読み進められます。

第3章

The Health Paradox: Cheap Solutions, Expensive Choices

Health represents an area of both great promise and frustration. Many low-cost interventions like vaccines and bed nets could save lives, yet few people utilize these preventive technologies. Of the 9 million children who die before age five annually, most are poor children from South Asia and sub-Saharan Africa, with roughly one-fifth dying from diarrhea. While vaccines are being developed, three "miracle drugs" could already save most of these children: chlorine bleach for water purification, and salt and sugar for oral rehydration solution (ORS). Yet adoption rates remain low. In Zambia, despite chlorine being widely available and affordable (800 kwachas/$0.18 USD PPP for a family of six), only 10% of families use it. In India, only one-third of children with diarrhea receive ORS. Why are 1.5 million children dying annually from a disease that could be prevented with bleach and treated with boiled water, sugar, and salt? Despite their reluctance to spend on preventive care, the poor do care deeply about health. When asked whether they experienced a period of feeling "worried, tense, or anxious" in the recent past, about one-fourth of the poor in both rural Udaipur and urban South Africa said yes-much higher than in the United States. The most frequent source of this stress (44% in Udaipur) was their own health or that of close relatives. The issue isn't how much the poor spend on health, but what they spend it on-typically expensive cures rather than cheap prevention. Many developing countries have triage systems to provide affordable basic care near people's homes, with trained personnel who can treat simple conditions and refer serious cases to higher levels. Yet the poor largely avoid this free public health system, choosing private providers instead. Government healthcare systems often fail the poor through chronic absenteeism and poor service quality. In Udaipur, researchers found health centers closed 56% of the time during scheduled hours. Even when present, government providers deliver shockingly poor care. Das and Hammer's research revealed what they call the "3-3-3 rule": the median patient interaction lasts three minutes, doctors ask three questions, and prescribe three medicines. The poor's health decisions are shaped by limited information and difficult learning environments. Without basic scientific knowledge, they develop plausible but incorrect theories (like preferring injections that deliver medicine "directly to the blood"). Learning from experience is nearly impossible with self-limiting illnesses or preventive measures like vaccines where cause-and-effect relationships aren't obvious. When facing serious health problems they cannot afford to treat, the poor need hope. They focus on minor ailments they can address while avoiding expensive diagnostics for potentially life-threatening conditions. This explains why chest pains become "bhopa diseases" (treated by traditional healers) while fevers receive medical attention. The immunization puzzle-where 77% start but few complete the series-reflects "time inconsistency," the same psychological barrier behind broken gym resolutions. We value present comfort over future benefits, perpetually postponing small costs. This explains why minor obstacles prevent life-saving behaviors and why small incentives (like 2 pounds of dal) dramatically increased immunization rates sevenfold in Udaipur. Health policy in poor countries should make preventive care as effortless as possible: free chlorine dispensers by water sources, rewards for immunization, school-based deworming, and public investment in water and sanitation. Though this approach seems paternalistic, those in rich countries already benefit from embedded paternalism that frees mental space for other concerns.

第4章

Education's Broken Promise: Why Schools Fail the Poor

In Karnataka, India, we met Shantarama, a widow supporting six children after her husband's unexpected death. Contrary to expectations, she kept most of her children in school, with her oldest son studying to become a teacher. Yet two middle children refused to attend despite available schools. This pattern reflects a broader puzzle: despite free, accessible schools and high enrollment rates worldwide, absenteeism ranges from 14-50% in our global surveys. Education policy debates mirror aid debates, dividing between interventionists (the "supply wallahs") who focus on classroom access, and those favoring market forces. The supply position dominates international policy, exemplified by the Millennium Development Goals targeting universal primary education and gender parity. Governments have responded-95% of Indian children now have schools nearby, and many African countries offer free primary education. But access doesn't guarantee learning. Teacher absenteeism plagues many countries, with instructors missing one day in five on average. In India, Pratham's nationwide assessment found 35% of children aged 7-14 couldn't read a first-grade paragraph, and 60% couldn't read a second-grade story. Only 30% could do basic division-raising the disturbing question of whether schools might actually be making children unlearn practical math skills they use in daily commerce. The "demand wallahs" argue that education quality remains poor because parents don't value it enough, seeing insufficient economic returns. Evidence supports this view: during India's Green Revolution, education increased faster in regions where new agricultural technology raised the value of learning. Similarly, when call centers began recruiting in rural northern India, girls' school enrollment increased by 5 percentage points in those villages. Despite skepticism that top-down education policies waste resources in communities where parents don't value education, evidence suggests otherwise. Indonesia's massive school-building program after the 1973 oil boom proved remarkably successful. Using a formula that prioritized areas with the most unschooled children, the INPRES program significantly increased wages for the generation that benefited from the new schools. Each additional year of primary education raised wages by about 8%-comparable to returns in the United States. Private schools have gained surprising cross-political support, with even India's Left backing the Right to Education Act that provides vouchers for private education. Low-income parents worldwide increasingly seek affordable private education, with schools charging as little as $1.50 monthly. These modest operations, often run by local educated women seeking income without leaving their villages, typically outperform public schools. Parents' distorted expectations about education fundamentally shape educational outcomes. In collage exercises in rural India, parents consistently chose images of luxury cars and jewelry to represent what education would bring their children-revealing their view of education primarily as a path to considerable wealth through government or office jobs. Parents consistently misperceive the returns to education as following an S-shaped curve rather than the linear reality. In Madagascar, parents believe primary education increases earnings by just 6% per year while secondary education yields 12-20% per year. This misconception leads parents to concentrate resources on their most "promising" child rather than investing equally in all children's education-creating an artificial poverty trap. Education interventions often disappoint because curricula and teaching methods are designed for elite students rather than average children. Michael Kremer's textbook experiment in Kenya showed no improvement in average test scores-only top students benefited because textbooks were in English, a third language for most children. Private schools don't perform better because they focus on preparing top students for gateway exams while neglecting the rest. The good news is that ensuring every child learns the basics is quite straightforward when that becomes the focus. Several key principles emerge from successful educational interventions: focusing on basic skills with the belief that every child can master them; recognizing that effective remedial teaching requires minimal training; reorganizing classrooms to allow children to learn at their own pace; setting realistic expectations; establishing proximate goals rather than distant ones; and leveraging technology.

『貧乏人の経済学』をもっと深く楽しむ

毎日の新しい気づきを10万件以上のレッスンから
言葉をハイライトして音声と同期
ライブラリを保存して、どの端末からでも利用

第5章

Family Planning: Beyond Access to Contraception

The chapter opens with the story of Sanjay Gandhi's aggressive population control campaign during India's Emergency period (1975-1977). Despite holding no official position, Gandhi implemented aggressive sterilization quotas that resulted in 8.25 million sterilizations in 1976-1977, often through coercive means including threats, fines, and even police roundups. Though temporarily effective, the program was widely resented and contributed to Indira Gandhi's electoral defeat in 1977. The authors examine whether lack of access to contraception explains high fertility rates among the poor. While UN reports suggest filling "unmet demand" for modern contraceptives could significantly reduce maternal deaths, evidence suggests access alone isn't the primary issue. Studies from Indonesia, Bangladesh's Matlab program, and Colombia's Profamilia program indicate that simply making contraceptives available has limited impact on overall fertility rates. While contraceptive access may not significantly reduce overall fertility, it can help teenagers postpone pregnancies, as seen in Colombia where it led to better job outcomes for women. Unfortunately, many countries restrict teenagers' access to family planning services without parental consent, contributing to extremely high teenage pregnancy rates in developing countries, particularly in sub-Saharan Africa and Latin America. Three different strategies were tested in Kenyan schools with dramatically different results. The ABCD curriculum (Abstain, Be faithful, use a Condom... or you Die) showed no effect on sexual behavior or pregnancy rates. However, simply informing girls that older men have higher HIV infection rates reduced "sugar daddy" relationships by two-thirds and cut pregnancy rates from 5.5% to 3.7%. Providing free school uniforms reduced pregnancy from 14% to 11%. Fertility decisions involve competing preferences between men and women, with men typically preferring larger families and less contraception than their wives. How contraceptives are provided matters tremendously. In Zambia, women given contraceptive vouchers privately were 23% more likely to use family planning services and had 57% fewer unwanted births than women whose husbands were present when receiving vouchers. For the poor, children function as comprehensive financial instruments-insurance policies, savings vehicles, and lottery tickets all in one. Pak Sudarno, an Indonesian scrap collector with nine children, explained that having many children ensured at least some would succeed and care for him in old age. Unlike the wealthy who have access to Social Security, retirement funds, and insurance, most of the world's poor rely on children for old-age security. When fertility decreases, financial savings typically increase. After China introduced family planning in 1972 and the one-child policy in 1978, households with their first child born after 1972 averaged one less child and had savings rates approximately 10 percentage points higher than earlier cohorts.

第6章

Risk Management: The Poor as Reluctant Hedge Fund Managers

Risk dominates the lives of the poor, who often run small businesses, farms, or work as casual laborers with no employment guarantees. A single misfortune can devastate their precarious existence, as illustrated by Ibu Tina's story. Once a successful garment business owner with her husband, a series of disasters-a bad check, police corruption, and a failed business venture-left her impoverished and living with her mother, caring for four children including a traumatized daughter. The poor are like hedge-fund managers but with complete liability for losses and no safety net. About 50% of urban poor run non-agricultural businesses, while 25-98% of rural poor operate farms, mostly on non-irrigated land vulnerable to weather fluctuations. Even casual laborers face extreme uncertainty, often working far fewer days than those with stable employment-in Gujarat, India, the bottom third of casual workers averaged only 137 workdays annually. When faced with economic hardship, the poor's natural impulse to work more can be self-defeating. In isolated villages, when everyone seeks more work during droughts or price spikes, they compete against each other, driving wages down further. Instead, the poor diversify like sophisticated hedge-fund managers, but with activities rather than financial instruments. In West Bengal villages, even farming families spend only 40% of their time farming, with the median family having three working members engaged in seven different occupations. This diversification provides crucial risk protection when one income source fails. Village networks provide crucial but imperfect informal insurance. Christopher Udry's Nigerian study found the average family was involved in lending relationships with 2.5 other families, with flexible repayment terms adjusted to both parties' circumstances. When borrowers suffered shocks, they repaid less; when lenders faced hardship, borrowers repaid more than owed. Despite these impressive solidarity mechanisms, research across countries from Cote d'Ivoire to Thailand shows informal insurance remains incomplete. Health shocks are particularly poorly insured through informal networks. In Indonesia, household consumption drops 20% when a member falls severely ill, and Philippine villages show notably weak solidarity for non-fatal severe illnesses compared to crop failures or job losses. Despite the promise of insurance for the poor, implementation faces significant challenges. When SKS Microfinance introduced their "Swayam Shakti" health insurance program, clients actively resisted mandatory enrollment-some prepaid loans early to exploit loopholes, while others simply left for competing lenders. The poor understand insurance concepts reasonably well-they correctly answered test questions about hypothetical policies 75% of the time. The real barriers include trust issues (sign-ups increased when familiar organizations were involved), frustration with catastrophic-only coverage that excludes common problems, and the cognitive challenge of paying now for benefits in an unpleasant future they'd rather not contemplate.

聴きながら、すべての言葉を目で追えます

『貧乏人の経済学』の一語一語が音声に合わせてリアルタイムでハイライトされ、自然に読み進められます。

第7章

The Microfinance Revolution: Promise and Limitations

The challenge of lending to the poor begins with a paradox: interest rates for the poor are staggeringly high. In Chennai, fruit sellers pay 4.69% interest per day on working capital loans-a rate that compounds to millions in just a year. These exorbitant rates inspired microfinance pioneers like Padmaja Reddy and Muhammad Yunus, who believed that offering more reasonable rates could transform lives. Most poor households don't access formal credit. In rural Udaipur, only 6.4% of loans come from formal sources, with most borrowing from relatives (23%), moneylenders (18%), or shopkeepers (37%). Interest rates from informal sources average 3.84% monthly (57% annually) for the extremely poor, with rates decreasing slightly as wealth increases. The high interest rates charged to the poor stem from several factors. Borrowers become bound to lenders they already know because switching is costly and raises suspicion. Banks cannot effectively compete with local moneylenders because bank officers rotate frequently, lack community knowledge, and cannot use the enforcement tactics of informal lenders. Microcredit has grown from modest beginnings with BRAC and Grameen Bank in Bangladesh to reach 150-200 million borrowers globally. It balances profit and social missions, exemplified by Muhammad Yunus's Nobel Peace Prize and Compartamos's controversial but successful IPO raising $467 million despite 100%+ interest rates. MFIs reinvented moneylending for social purposes by using group liability-borrowers guarantee each other's loans and meet weekly, creating mutual accountability. Despite enthusiastic claims that microcredit can transform lives and help achieve development goals, rigorous evidence has been scarce. When Spandana, one of India's most profitable MFIs, agreed to a randomized evaluation in Hyderabad, the results were modest but positive. After 15-18 months, people in neighborhoods with microcredit access were more likely to start businesses (though only increasing from 5% to 7%) and purchase durable goods. Microcredit's modest impact stems partly from the fact that many poor people aren't willing or able to start businesses. More puzzling is that even with multiple MFIs offering affordable credit in Hyderabad slums, only about one-fourth of families borrowed from them, while over half continued using moneylenders at much higher rates. This likely relates to microcredit's rigid structure-the very features that enable its low-cost lending model. The microcredit model's necessary focus on repayment discipline makes it poorly suited for financing entrepreneurs seeking to grow beyond micro-enterprises. When India expanded its "priority sector" lending requirements to include somewhat larger firms, these newly eligible businesses invested productively-a 10% increase in loans generated 9% profit after repayment, demonstrating significant untapped potential.

第8章

Saving Brick by Brick: The Psychology of Poverty

Throughout developing countries, unfinished houses dot the landscape-homes with walls but no roof, missing windows, or protruding beams. These incomplete structures represent how the poor save, building incrementally as cash becomes available. While seemingly inefficient compared to accumulating money in a bank before construction, this brick-by-brick approach reflects limited savings options. Despite having limited access to credit and insurance, the poor have compelling reasons to save-to buffer against bad harvests or illness, or to start businesses. The Victorian view that poor people are inherently shortsighted and impatient persists in various forms today, but research shows the poor are actually financially sophisticated. In our eighteen-country dataset, formal savings accounts are rare (median 7-8% ownership), yet the poor save through ingenious alternatives: savings clubs, self-help groups, rotating savings and credit associations (ROSCAs), deposit collectors, moneylenders, and "money guards." Understanding how people think about the future explains apparent contradictions in saving behavior. In Kenya, farmers rarely use fertilizer despite 70% returns on investment. When offered free fertilizer and seeing impressive results, most farmers initially planned to use it again, but the majority didn't follow through. The problem wasn't lack of knowledge but inability to hold onto money between harvest and planting. Farmers like Michael and Anna Modimba explained that saving at home is nearly impossible because "there is always something that comes up" requiring money. Human psychology creates internal barriers to saving. Our brains process present and future differently, creating "time inconsistency" where we spend today while planning to save tomorrow. Many poor people demonstrate remarkable self-awareness about these tendencies, identifying specific "temptation goods" they wish to reduce. Self-control challenges affect everyone but hit the poor harder for two reasons. First, the rich can easily satisfy their "temptation needs" while still saving, whereas poor people's major goals (like refrigerators or better schooling) remain distant while temptation goods are immediately accessible. Second, the poor must actively decide to save repeatedly without the automatic deductions available to salaried workers, exhausting their "self-control muscle" while already under stress. Hope and future opportunity dramatically affect saving behavior. Poor people who see pathways to realize their aspirations will reduce "frivolous" consumption to invest in that future, while those feeling hopeless make decisions reflecting their desperation. An experiment with fruit vendors in India and the Philippines demonstrated this asymmetry. When researchers paid off vendors' debts, 40% remained debt-free for ten weeks. However, almost all eventually returned to debt after experiencing a shock, and once indebted, couldn't escape on their own.

『貧乏人の経済学』をもっと深く楽しむ

毎日の新しい気づきを10万件以上のレッスンから
言葉をハイライトして音声と同期
ライブラリを保存して、どの端末からでも利用

第9章

The Reluctant Entrepreneur: Why the Poor Need Jobs

A businessman returning to India in the 1970s received an entrepreneurial lesson from his uncle, who showed him four women sitting outside the Bombay Stock Exchange. These women collected wet sand from the beach before dawn, spread it on streets, let passing cars dry it with their heat, then collected and sold the dry sand in small packets for dish scrubbing. This ingenuity-creating something from nothing with extremely limited resources-exemplifies the entrepreneurial spirit among the poor that has inspired the microfinance and social business movements. Despite their resourcefulness, two troubling realities emerge about poor entrepreneurs: their businesses remain extremely small and typically generate very little income. Most have no paid employees and minimal assets-often just tables, scales or pushcarts. In Hyderabad, only 20% have dedicated business spaces. Unlike exceptional success stories, most businesses never grow substantially. In Mexico, only 41% of businesses operated by the extremely poor survived three years, and employee growth was minimal. These microenterprises also struggle financially-the median business in Hyderabad generated about $115 USD PPP monthly profit, barely enough to pay one person $2 per day. For most poor entrepreneurs, growing a business is simply too difficult. Consider someone like Xu Aihua who needs $10,000 to buy a machine when starting with just $100. Even with an impressive 25% profit margin and full reinvestment, it would take 21 years to save enough-or 40 years if they needed half their profits to live on. This stark reality kills motivation. Why invest emotionally and financially in a business that will never meaningfully change your life? The businesses of the poor often represent necessity rather than opportunity. Consider Pak Awan and his wife in Indonesia-they opened a small shop only because he couldn't find construction work and she was rejected from factory jobs. Despite being eligible for expansion loans, they were reluctant entrepreneurs who dreamed their children would secure government jobs. Their shop was simply a way to generate income when conventional employment wasn't available. When we ask poor people about their ambitions for their children, the overwhelming response isn't entrepreneurship but government employment. In Udaipur, 75% of parents want their sons in government positions, with similar preferences for daughters. The poor crave stability-the defining characteristic that separates the middle class from the poor across our eighteen-country dataset. Stable employment transforms lives, as we witnessed in an Udaipur village near a zinc factory where generational prosperity emerged from secure industrial jobs.

第10章

From Evidence to Action: Five Key Lessons

Economists have little predictive power about which countries will grow and which will stagnate. Supposed basket cases like Bangladesh become miracles while model nations like Cote d'Ivoire collapse. Though we can't predict growth, it seems reasonable that growth is more likely to take hold where people are educated, well-fed, healthy, and confident enough to invest in their children's futures. First, the poor often lack critical information and believe falsehoods about immunization benefits, education value, fertilizer usage, HIV transmission, and politicians' actions. This leads to harmful decisions, like unprotected sex with older men or improper fertilizer use. Effective information campaigns must provide new knowledge in attractive, simple formats from credible sources. Second, the poor bear responsibility for too many aspects of their lives. Unlike the wealthy, they must purify their own water, ensure proper nutrition, and create their own savings systems-all while managing demanding work lives in competitive or precarious employment. Making the "right" choices easier through defaults and nudges can significantly improve outcomes-fortified salt, accessible savings accounts, and conveniently placed chlorine can all make good decisions simpler. Third, markets often fail the poor or charge them unfavorable prices. The poor receive negative interest on savings while paying exorbitant loan rates because handling small amounts incurs fixed costs. Some markets, like health insurance, haven't developed because available options don't match what the poor need. While innovations like microcredit and electronic money transfers help, governments sometimes need to step in by subsidizing services or providing them directly. Fourth, poor countries aren't doomed to failure because of poverty or history. Many program failures stem from avoidable design flaws and the "three Is": ignorance, ideology, and inertia. Governance can improve without changing entire social structures-by ensuring inclusive village meetings, monitoring government workers, holding politicians accountable, and clearly communicating service expectations to users. Finally, expectations often become self-fulfilling prophecies. Children abandon education when teachers signal they aren't smart enough; fruit sellers don't repay debts believing they'll quickly fall back into debt; nurses skip work when nobody expects attendance; politicians don't perform when constituents expect nothing. Yet expectations can change: villages seeing female leaders lose prejudice against women in politics; teachers told simply to ensure children can read accomplish this in summer camps. Success feeds on itself as improvements affect beliefs and behavior, creating virtuous cycles that can start with simple interventions like cash transfers.

★★★★★

『貧乏人の経済学』を最後まで読み終えました

100万人以上の学習者に愛用されています

“23日間、毎日使い続けています。今では日課の一部です。”

jayallen

『貧乏人の経済学』の主要テーマ

randomized controlled trials
poverty trap mechanisms
behavioral development economics
preventive healthcare adoption
nutritional investment returns

『貧乏人の経済学』の名言

The poor also have other priorities beyond food.
Small nutritional investments during childhood yield enormous returns later.
The issue isn't how much the poor spend on health, but what they spend it on.
Government healthcare systems often fail the poor through chronic absenteeism and poor service quality.

『貧乏人の経済学』の登場人物

Abhijit V. BanerjeeAuthor and Nobel Prize-winning MIT economist
Esther DufloAuthor and Nobel Prize-winning MIT economist
Michael KremerNobel Prize-winning economist and researcher
Oucha MbarbkMoroccan villager interviewed about his spending

著者について

アビジット・V・バナジーは、ノーベル経済学賞受賞者であり、開発経済学とエビデンスに基づく政策の画期的な探求書である『貧乏人の経済学 ― もういちど貧困問題を考え直す』の共著者です。マサチューセッツ工科大学（MIT）のフォード財団国際教授であり、アブドゥル・ラティフ・ジャミール貧困アクション・ラボ（J-PAL）の共同創設者でもあるバナジーは、貧困削減戦略を評価するためにランダム化比較試験（RCT）を用いる手法を切り拓きました。彼の研究は、学術的な厳密さと現実世界への影響を橋渡しし、低所得コミュニティにおけるヘルスケアへのアクセス、教育改革、金融包摂といったテーマに取り組んでいます。

行動経済学へのデータ駆動型の洞察で称賛された『貧乏人の経済学』に加え、バナジーは格差や気候変動といった現代の課題を扱うベストセラー『絶望を希望に変える経済学 ― 社会の処方箋』を共著しています。

彼の研究は、世界銀行、国際連合、そして世界各国の政府の政策に影響を与えてきました。2019年にノーベル経済学賞を受賞（エステル・デュフロ、マイケル・クレマーと共同受賞）したバナジーの思想は、『ニューヨーク・タイムズ』、TEDトーク、国際開発フォーラムなどで取り上げられています。20以上の言語に翻訳された『貧乏人の経済学』は、経済学のカリキュラムや政策議論において、今なお極めて重要な文献であり続けています。

貧乏人の経済学の要約をダウンロード

貧乏人の経済学の要約をPDFまたはEPUBで無料でダウンロード。印刷やオフラインでいつでもお読みいただけます。

他のユーザーのお気に入り

Good Economics for Hard Times

Abhijit V. Banerjee & Esther Duflo

Bottom Billion

Paul Collier

Scarcity

Sendhil Mullainathan and Eldar Shafir

Economics for the Common Good

Jean Tirole

False Economy

Alan Beattie

Portfolios of the Poor

Daryl Collins

Austerity

Mark Blyth

Poverty Safari

Darren McGarvey

この本に関するよくある質問

学習プラン

Economics for Future Leaders

This plan provides a foundational toolkit for aspiring decision-makers to understand the invisible forces shaping our world. It is ideal for students and professionals who want to bridge the gap between abstract economic theory and practical financial literacy.

1 h 45 m•3 セクション

学習プラン

Master behavioral economics

Behavioral economics has revolutionized how we understand human decision-making, revealing that people consistently make predictable errors in judgment that traditional economics cannot explain. This learning plan is essential for professionals in business, policy, marketing, product design, and leadership roles who want to understand what truly drives human behavior and how to design systems that lead to better outcomes. Whether you're optimizing user experiences, crafting policies, developing marketing strategies, or simply seeking to make better decisions yourself, mastering these principles provides a powerful competitive advantage.

4 h 39 m•4 セクション

学習プラン

Study economics

Economics shapes every aspect of modern life, from personal financial decisions to global policy debates. This comprehensive learning plan is ideal for students, professionals, entrepreneurs, and engaged citizens who want to understand the forces driving markets, make better strategic decisions, and critically evaluate economic claims in business and public discourse.

4 h 22 m•4 セクション

学習プラン

The Science of Financial Abundance

This plan is essential for individuals who feel stuck despite their efforts, as it bridges the gap between psychological rewiring and practical financial execution. It is ideal for professionals and entrepreneurs looking to remove mental barriers and apply a scientific approach to achieving wealth.

2 h 15 m•4 セクション

学習プラン

Power, Money, and Daily Life

This learning plan is essential for anyone seeking to understand the invisible forces of governance and economics that shape our world. It is designed for curious minds and aspiring policy thinkers who want to move beyond headlines to grasp how power and capital actually function.

2 h•4 セクション

学習プラン

Money scripts and behavioral finance

This learning plan is essential for anyone who finds themselves repeating poor financial patterns despite knowing better. It bridges the gap between financial knowledge and actual behavior, making it ideal for investors, spenders, and professionals seeking to master their money mindset.

4 h 46 m•4 セクション

学習プラン

Learn econ frameworks for investing

This learning plan is essential for anyone seeking to make informed financial decisions by understanding the complete economic picture—from global markets to personal portfolios. It's ideal for aspiring investors, finance professionals, or individuals who want to move beyond surface-level financial advice and develop a systematic, theory-grounded approach to building wealth. By connecting macroeconomic principles to practical investment strategies, learners gain the critical thinking framework needed to navigate complex financial landscapes with confidence.

5 h 8 m•4 セクション

学習プラン

Books for financial freedom

Financial literacy is rarely taught in schools, yet it's one of the most critical skills for life success and security. This learning plan is essential for anyone seeking to break free from paycheck-to-paycheck living, build lasting wealth, and gain control over their time and future. Whether you're drowning in debt, just starting your career, or looking to optimize your existing wealth, these principles provide the roadmap to financial independence.

4 h 26 m•4 セクション

コロンビア大学卒業生がサンフランシスコで開発

LOVED BY

1,000,000+ curious minds.

4.7

avg rating

1M+ learners

"Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."

@Moemenn

"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."

@Chloe, Solo founder, LA

117

"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."

@Raaaaaachelw

"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."

@Matt, YC alum

108

"Reading used to feel like a chore. Now it’s just part of my lifestyle."

@Erin, Investment Banking Associate , NYC

254

"Feels effortless compared to reading. I’ve finished 6 books this month already."

@djmikemoore

"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."

@Pitiful

4.5K

"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."

@SofiaP

"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"

@Jaded_Falcon

201

"It is great for me to learn something from the book without reading it."

@OojasSalunke

"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."

@Leo, Law Student, UPenn

483

"Makes me feel smarter every time before going to work"

@Cashflowbubu

BeFreedがウェブ上でどのように話題になっているかをもっと見る

コロンビア大学卒業生がサンフランシスコで開発

LOVED BY

1,000,000+ curious minds.

4.7

avg rating

1M+ learners

"Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."

@Moemenn

"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."

@Chloe, Solo founder, LA

117

"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."

@Raaaaaachelw

"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."

@Matt, YC alum

108

"Reading used to feel like a chore. Now it’s just part of my lifestyle."

@Erin, Investment Banking Associate , NYC

254

"Feels effortless compared to reading. I’ve finished 6 books this month already."

@djmikemoore

"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."

@Pitiful

4.5K

"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."

@SofiaP

"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"

@Jaded_Falcon

201

"It is great for me to learn something from the book without reading it."

@OojasSalunke

"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."

@Leo, Law Student, UPenn

483

"Makes me feel smarter every time before going to work"

@Cashflowbubu

"Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."

@Moemenn

"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."

@Chloe, Solo founder, LA

117

"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."

@Raaaaaachelw

"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."

@Matt, YC alum

108

"Reading used to feel like a chore. Now it’s just part of my lifestyle."

@Erin, Investment Banking Associate , NYC

254

"Feels effortless compared to reading. I’ve finished 6 books this month already."

@djmikemoore

"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."

@Pitiful

4.5K

"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."

@SofiaP

"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"

@Jaded_Falcon

201

"It is great for me to learn something from the book without reading it."

@OojasSalunke

"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."

@Leo, Law Student, UPenn

483

"Makes me feel smarter every time before going to work"

@Cashflowbubu

"Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."

@Moemenn

"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."

@Chloe, Solo founder, LA

117

"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."

@Raaaaaachelw

"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."

@Matt, YC alum

108

"Reading used to feel like a chore. Now it’s just part of my lifestyle."

@Erin, Investment Banking Associate , NYC

254

"Feels effortless compared to reading. I’ve finished 6 books this month already."

@djmikemoore

"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."

@Pitiful

4.5K

"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."

@SofiaP

"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"

@Jaded_Falcon

201

"It is great for me to learn something from the book without reading it."

@OojasSalunke

"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."

@Leo, Law Student, UPenn

483

"Makes me feel smarter every time before going to work"

@Cashflowbubu

BeFreedがウェブ上でどのように話題になっているかをもっと見る

今すぐ学習の旅を始めよう

第4章

貧乏人の経済学

概要『貧乏人の経済学』の概要

1冊の本。さまざまな聴き方。

The Economics of Poverty: A Revolutionary Perspective

Beyond Hunger: The Complex Reality of Food and Nutrition

聴きながら、すべての言葉を目で追えます

The Health Paradox: Cheap Solutions, Expensive Choices

Education's Broken Promise: Why Schools Fail the Poor

『貧乏人の経済学』をもっと深く楽しむ

Family Planning: Beyond Access to Contraception

Risk Management: The Poor as Reluctant Hedge Fund Managers

聴きながら、すべての言葉を目で追えます

The Microfinance Revolution: Promise and Limitations

Saving Brick by Brick: The Psychology of Poverty

『貧乏人の経済学』をもっと深く楽しむ

The Reluctant Entrepreneur: Why the Poor Need Jobs

From Evidence to Action: Five Key Lessons

『貧乏人の経済学』を最後まで読み終えました

『貧乏人の経済学』の主要テーマ

『貧乏人の経済学』の名言

『貧乏人の経済学』の登場人物

著者について

貧乏人の経済学の要約をダウンロード

他のユーザーのお気に入り

この本に関するよくある質問

What is Poor Economics by Abhijit Banerjee and Esther Duflo about?

Who should read Poor Economics?

Is Poor Economics worth reading?

What are the main arguments in Poor Economics?

もっと見る

1,000,000+ curious minds.

1,000,000+ curious minds.

1冊の本。さまざまな聴き方。

The Economics of Poverty: A Revolutionary Perspective

Beyond Hunger: The Complex Reality of Food and Nutrition

聴きながら、すべての言葉を目で追えます

The Health Paradox: Cheap Solutions, Expensive Choices

Education's Broken Promise: Why Schools Fail the Poor

『貧乏人の経済学』をもっと深く楽しむ

Family Planning: Beyond Access to Contraception

Risk Management: The Poor as Reluctant Hedge Fund Managers

聴きながら、すべての言葉を目で追えます

The Microfinance Revolution: Promise and Limitations

Saving Brick by Brick: The Psychology of Poverty

『貧乏人の経済学』をもっと深く楽しむ

The Reluctant Entrepreneur: Why the Poor Need Jobs

From Evidence to Action: Five Key Lessons

『貧乏人の経済学』を最後まで読み終えました

他のユーザーのお気に入り

もっと見る

『貧乏人の経済学』の概要