What is *The Undercover Economist* by Tim Harford about?

*The Undercover Economist* explores hidden economic forces shaping everyday life, from coffee pricing to global trade. Tim Harford demystifies concepts like scarcity, externalities, and market failures through relatable examples like Starbucks’ strategies and used-car markets. The book connects microeconomic principles to macro-level issues like globalization, offering a lens to understand how incentives drive decisions in business, policy, and personal choices.

Who should read *The Undercover Economist*?

This book suits economics beginners, curious readers, and professionals seeking real-world applications of economic theory. Harford’s humor and clear storytelling make it accessible for students, business strategists, and anyone interested in how markets influence daily decisions—from grocery shopping to understanding international trade dynamics.

Is *The Undercover Economist* worth reading?

Yes—it’s a digestible primer on economics that blends academic rigor with engaging narratives. Harford avoids jargon, using anecdotes like traffic congestion pricing and China’s economic rise to illustrate complex ideas. Readers gain actionable insights into consumer behavior, corporate strategies, and global inequality, making it a valuable resource for informed decision-making.

How does *The Undercover Economist* explain price targeting?

Harford reveals how businesses like Starbucks use location monopolies and “price discrimination” to charge premium prices. For example, crowded train stations allow coffee chains to exploit scarcity, while loyalty programs target price-sensitive customers. This strategy highlights how companies maximize profits by segmenting markets based on willingness to pay.

What are the key economic concepts in *The Undercover Economist*?

- **Scarcity**: How limited resources (e.g., prime retail space) drive pricing power. - **Externalities**: Costs borne by third parties, like pollution or traffic congestion. - **Information asymmetry**: Why used-car markets favor sellers over buyers. - **Globalization**: Comparative advantage’s role in international trade and wealth disparities.

What does Tim Harford say about globalization in the book?

Harford acknowledges globalization’s dual impact: while it fuels economic growth (e.g., China’s rise), it also exacerbates inequality. He argues that free trade benefits societies overall but stresses the need for policies to mitigate localized harms, such as job displacement in certain industries.

How does *The Undercover Economist* differ from *Freakonomics*?

Both use storytelling to explain economics, but Harford focuses more on foundational principles (supply/demand, externalities) and global systems. *Freakonomics* emphasizes unconventional data analysis (e.g., cheating sumo wrestlers). Harford’s work is often seen as a broader introduction to economic theory.

What are notable quotes from *The Undercover Economist*?

- **“Your cappuccino reflects the outcome of a system of staggering complexity”**: Illustrates global supply chains’ role in everyday products. - **“Strength comes from scarcity”**: Explains how controlling limited resources (e.g., urban real estate) creates market power.

経済は感情で動く――はじめての行動経済学

ティム・ハーフォード

3.81(29169 Reviews)

『経済は感情で動く――はじめての行動経済学』の概要

『ヤバい経済学』と並んで経済的思考を一変させた一冊、『まっとうな経済学（原題：The Undercover Economist）』で、日常の経済学がなぜ退屈ではないのかを発見しましょう。なぜスターバックスのコーヒーはそのような価格設定なのか？中古車の売買はなぜこれほどまでに一筋縄ではいかないのか？『ヤバい経済学』の著者スティーヴン・レヴィットでさえ、本書を「経済学に命を吹き込む」「稀有な一冊」と評しています。

語り方を選ぶ

1冊の本。さまざまな聴き方。

経済は感情で動く――はじめての行動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 Behind Your Morning Coffee

Have you ever stood in line at a train station Starbucks, begrudgingly paying $2.55 for a cappuccino while wondering why it costs so much? Or perhaps you've puzzled over why the same sandwich costs 30p more at one supermarket location than another just blocks away? Tim Harford's "The Undercover Economist" peels back the curtain on these everyday mysteries, revealing the hidden economic forces that shape our daily lives. Since its 2005 publication, this book has sold over a million copies and been translated into 30 languages, becoming a favorite of everyone from Bill Gates to college economics professors. What makes it so compelling is Harford's remarkable ability to transform complex economic concepts into engaging stories about coffee shops, traffic jams, and supermarket pricing strategies. By the end of this journey, you'll never look at your morning commute the same way again - you'll see the invisible hand of economics guiding everything from the price of your coffee to why some countries prosper while others remain poor.

第2章

The Power of Scarcity: Why Your Coffee Costs So Much

That $2.55 cappuccino you're sipping isn't expensive just because of the beans or the barista's skill - it's expensive primarily because of location. The coffee kiosk's strategic position directly in the path of sleep-deprived commuters creates what economists call "scarcity power." With seventy-four million people passing through London's Waterloo station annually, these prime spots guarantee a roaring trade. But who ultimately profits from this perfect location? Not Starbucks, but the landlords who own these coveted spaces. This economic principle was first identified by David Ricardo in 1817 when he analyzed why agricultural rents soared during the Napoleonic wars. Ricardo illustrated his theory with a frontier story: when land is abundant and settlers scarce, landlords have no bargaining power. But as more settlers arrive and fertile meadowland becomes scarce, bargaining power shifts dramatically to landlords. Eventually, rents rise to reflect the productivity difference between prime meadowland and inferior alternatives. Ricardo's agricultural model perfectly explains modern coffee economics. The common view that "coffee is expensive because rents are high" reverses causality. In reality, prime coffee locations command high rents because rush-hour customers willingly pay premium prices for convenient caffeine. That's why Starbucks, Cosi and AMT dominate train station exits - these locations generate value that can't be matched elsewhere. This framework helps distinguish between natural and artificial causes of high prices. Some high prices naturally result from scarcity - like apartments overlooking Central Park - while others result from artificial restrictions. London's Green Belt, for instance, has made property artificially scarce relative to demand, resulting in the world's most expensive office space. Such policies transfer wealth from tenants to landlords while preserving environmental benefits - an economic tradeoff that must be understood when evaluating such legislation. The pursuit of monopoly rents extends far beyond landlords to include trade unions, professional organizations, and governments - all seeking to avoid competition. Economists call this behavior "creating rents" and "rent-seeking." Even criminal enterprises like drug gangs and the Mafia attempt to create scarcity through violence, though with varying degrees of success. Street gang "foot-soldiers" earn as little as $1.70 per hour despite extraordinary risks, while more organized criminal enterprises target legitimate businesses where threats are more effective. In more civilized corners of society, people have developed non-violent methods to prevent competition. Professional bodies like medical and legal associations maintain high wages through "virtual green belts" - lengthy qualification periods and restrictions that limit new entrants. These organizations, while claiming to protect us from unqualified practitioners, effectively outlaw low-cost alternatives. As George Bernard Shaw observed, professions are "conspiracies against the laity."

聴きながら、すべての言葉を目で追えます

『経済は感情で動く――はじめての行動経済学』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

Price Targeting: What Supermarkets Don't Want You to Know

Have you ever wondered why organic bananas cost so much more than conventional ones? Or why a sandwich costs more at a train station than at a store just blocks away? These price differences aren't random - they're carefully engineered strategies called "price targeting." Companies face a fundamental dilemma: charge high prices and lose customers, or cut prices and struggle to cover costs. The solution? Find subtle ways to charge different prices to different customers based on their willingness to pay. Businesses employ three main strategies to identify price-insensitive customers. First is the "unique target" approach: evaluating each customer individually, like car salesmen or real estate agents do. Modern versions include supermarket loyalty cards that track your purchasing patterns to offer personalized discounts. The second approach is "group targeting" - offering different prices to distinct groups like children, seniors, or locals. When Disney World offers 50% discounts to Florida residents, they're not making a statement about local poverty; they recognize locals have more options and are thus more price-sensitive than one-time tourists. The cleverest strategy is "self-incrimination" - getting customers to reveal their price insensitivity by choosing premium versions of essentially the same product. This happens through different quantities (large vs. small cappuccino), added features (whipped cream, white chocolate), or different locations. Supermarkets have perfected these techniques. The Marks and Spencer store above Liverpool Street station charges approximately 15% more than another M&S branch just 1,500 feet away. Items like salads (3.50 vs 3.00) and sandwiches (2.20 vs 1.90) consistently cost more at the station location. Sainsbury's employs more subtle tactics: their Tottenham Court Road store prominently displays premium products like Tropicana juice at 1.95, while their Dalston store showcases cheaper alternatives alongside the premium options. Organic food provides the perfect price-targeting opportunity. While organic production genuinely costs more, retailers exploit enthusiasm with excessive markups - UK organic milk commands a 50-cent premium though farmers receive less than 20 cents of this. At Wholefoods, organic produce is strategically placed next to different conventional items to prevent direct price comparisons. Sales pricing seems puzzling - why not offer consistent 5% discounts instead of periodic 30% markdowns? Because sales effectively separate price-sensitive bargain hunters from loyal or rushed customers. These "sales" are actually random premium pricing - companies find it more profitable to unpredictably increase prices than apply small consistent markups. Price targeting isn't always bad. Consider PillCorp, a hypothetical pharmaceutical company with a unique HIV/AIDS treatment. If they charge a uniform global price, they'll set it high to maximize profits from wealthy markets, making the drug unaffordable in poor countries. But if PillCorp can price-target - charging $1,000 in rich countries while selling at $30 in developing nations - everyone benefits. Western patients maintain access, shareholders earn more profit, and poor patients gain affordable treatment.

第4章

Perfect Markets and the "World of Truth"

Free markets force truth-telling like Jim Carrey in "Liar, Liar." When transactions are voluntary, they reveal crucial information: buyers value products more than the price paid, and sellers value the money more than keeping the product. This simple truth creates efficiency - transactions make both parties better off without harming others. In perfectly competitive markets, prices equal marginal costs exactly, creating an intricate network that processes complex information. When something changes (like a frost in Brazil), the entire system adjusts through price signals, affecting everything from coffee prices to aluminum roofing in Kenya to bank deposits. The fundamental truth in price systems is that transactions are voluntary - nobody is forced to buy or sell. When you purchase coffee, you reveal that you value it more than whatever else you could buy with that money. This seemingly obvious fact creates powerful information that's absent in non-market decisions like government-subsidized stadiums. Modern democracies provide some goods outside market systems, revealing both strengths and weaknesses of markets. Police services, paid through taxation, offer equal protection regardless of wealth, but deny consumer choice when service is poor. Similarly, government schools conceal inequalities between rich and poor, but lose crucial information about preferences and costs. Without prices, parents resort to desperate measures - moving neighborhoods or feigning religious devotion - to access better schools. Prices perform dual functions: they determine who gets limited resources and signal when to produce more. While politicians hear citizens want everything - good schools, more police, excellent healthcare, and low taxes - prices force us to reveal our true priorities by putting money where our mouths are. A perfectly competitive market functions like a giant supercomputer with sensors throughout the economy - even inside our brains - constantly optimizing production and allocation. While perfectly efficient, such markets aren't necessarily fair; Bill Gates having all money while everyone else starves would be "efficient" by economic definition. Kenneth Arrow revolutionized economic thinking by proving that all efficient outcomes can be achieved using competitive markets by adjusting starting positions. Instead of interfering with market mechanisms, Arrow showed we could achieve fairness through "head starts" - lump-sum payments and one-time taxes that don't distort behavior. Like moving starting blocks in a 100-meter sprint rather than forcing fast runners to run backward, this approach maintains efficiency while promoting fairness. A practical application of this "head start theorem" could address elderly people freezing in winter without damaging the environment. In Britain, where 25,000 seniors die each winter from inadequate heating, domestic fuel is taxed at lower rates. But this approach is inefficient - a better solution would be to maintain efficient fuel taxes while giving extra money directly to the elderly. With this "head start," pensioners could make their own efficient decisions: some might turn on heating, others might insulate their homes or move to warmer climates.

『経済は感情で動く――はじめての行動経済学』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

When Markets Fail: Externalities and Traffic Congestion

Despite their theoretical perfection, markets sometimes fail spectacularly. Three key market failures plague our economy: scarcity power (like Microsoft's dominance), missing information (like doctor-patient relationships), and externalities (side effects on bystanders). Traffic exemplifies this third failure, as drivers create pollution, congestion, noise, and danger without compensating those affected. Vehicles in major cities damage innocent bystanders through air pollution (causing thousands of premature deaths annually), traffic delays, noise, accidents, and the "barrier effect" that discourages walking. While drivers benefit from their trips, they impose costs on everyone else - from other drivers to pedestrians to office workers who can't open windows due to traffic noise. The solution to traffic congestion is charging per trip rather than upfront fees. Using a college party analogy where unlimited drinking leads to overconsumption, congestion occurs because the next trip is always free, not because average taxes are too low. What matters for reducing congestion is the marginal price drivers pay for each additional trip, not how much they pay on average. Externality charges should accurately reflect the harm caused in different contexts. While European drivers pay per-mile fuel taxes, these don't match the actual costs inflicted - rural drivers pay similar rates despite causing less congestion than urban commuters. The ideal charge varies by time and place, reflecting the true cost of inconvenience caused to others. Some object that externality charges unfairly target disadvantaged groups, like poor drivers. However, these charges target voluntary activities, not people - and in the UK, the poorest actually spend seven times less on fuel than the richest, making congestion charges progressive. Others argue that pollution should be illegal rather than "affordable for the rich." But even wealthy people respond to price incentives, and externality charges are the most efficient way to achieve any desired reduction in harmful activity. People respond profoundly to price signals, as demonstrated by New Orleans' unique "Camelback" houses designed to avoid taxes based on front-facing stories. When London introduced congestion charging, car trips fell by nearly a third within a year, with travelers shifting to buses (up 15%), motorcycles (up 20%), and bicycles (up 30%). The beauty of externality pricing is that it signals the problem without dictating solutions, allowing market ingenuity to discover efficient responses. The EPA's sulfur dioxide emissions auction in the 1990s revealed how externality pricing uncovers truth. While polluters had claimed reducing emissions would cost $250-1,500 per ton, the auction showed few were willing to pay even $70 per ton. Many chose to install scrubbers or buy cleaner coal instead. This approach didn't just reduce pollution - it revealed the true, modest cost of abatement, providing crucial information for future legislation.

第6章

Inside Information: Why Markets Sometimes Break Down

Economists have long recognized that markets malfunction when one party has inside information that the other lacks. George Akerlof's revolutionary 1970 paper "The Market for Lemons" demonstrated how profound this problem can be. Using the market for used cars, he showed that when sellers know whether their cars are "peaches" (good) or "lemons" (bad) but buyers can't tell the difference, the market breaks down entirely. Buyers won't pay peach prices when there's a chance of getting lemons, and sellers won't sell peaches at lemon prices. This information asymmetry creates a downward spiral where quality products are driven out of the market, leaving only inferior goods - a phenomenon known as adverse selection. Health insurance provides a particularly stark example of this "lemons" problem. People who suspect they're unhealthy ("lemons") rush to buy comprehensive insurance, while the healthy ("peaches") only buy if it's cheap. This forces insurers to raise premiums as they attract more high-risk customers, driving away healthier clients in a vicious cycle until only the sickest people seek insurance at nearly unaffordable rates. This dynamic explains why individual health insurance markets often struggle without government intervention or employer sponsorship. America's dysfunctional healthcare system exemplifies these problems in action. Unlike countries with government-funded healthcare or compulsory social insurance, the US system is voluntary with risk-based premiums. The results are predictably problematic: it's extraordinarily expensive (costing a third more than Switzerland, the next most expensive system), bureaucratically bloated (administrative costs exceed $1,000 per person - as much as entire healthcare spending in some countries with similar outcomes), and patchy in coverage (15% of Americans are uninsured versus 0.2% in Germany). The fragmented nature of the system creates additional inefficiencies, with multiple insurers each maintaining their own administrative systems and negotiating separately with providers. Beyond adverse selection (the lemons problem), inside information creates "moral hazard" - when people are compensated for bad outcomes, they become careless. Insured car owners park in riskier locations or drive less carefully; unemployment benefits reduce job-hunting urgency; bank deposit insurance eliminates incentives to verify bank stability. This phenomenon appears across various markets and insurance types, leading to increased risk-taking behavior and higher costs for everyone in the system. Singapore's healthcare system demonstrates how clever policy design can overcome these market failures. Operating successfully for almost two decades, Singaporeans live to age 80 while spending just $1,000 per person annually ($700 private payments and $300 government spending) - far less than American or British costs. The system works because it tackles the fundamental problem of inside information destroying insurance markets through three key mechanisms: mandatory health savings accounts (Medisave), catastrophic insurance for major illnesses (MediShield), and a safety net for the poor (Medifund). This structure preserves patient choice while avoiding the adverse selection and moral hazard problems that plague other healthcare systems. The combination of personal responsibility through forced saving and protection against catastrophic risks has created a sustainable and efficient healthcare market.

聴きながら、すべての言葉を目で追えます

『経済は感情で動く――はじめての行動経済学』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

Why Poor Countries Are Poor: Institutions Matter

Despite being one of the world's poorest countries (the average Cameroonian is eight times poorer than the global average and fifty times poorer than Americans), Cameroon demonstrates no shortage of entrepreneurial spirit. What explains this persistent poverty? Economists traditionally believed wealth came from three sources: man-made resources (infrastructure, factories), human resources (labor and education), and technological resources (technical knowledge). This theory suggested poor countries should rapidly catch up to rich ones through investment. Some countries like Taiwan, South Korea and China have indeed grown rapidly, doubling incomes every decade. Yet many poor countries grow more slowly than rich ones or, like Cameroon, actually become poorer. Mancur Olson proposed a theory explaining why stable dictatorships perform better economically than anarchies but worse than democracies. He viewed governments as essentially bandits with guns who take resources from citizens. A "roving bandit" dictator with short tenure has no incentive to preserve the economy, while a "stationary bandit" who plans to stay must keep the economy functioning to continue extracting wealth. However, even stable dictators damage growth by effectively imposing high "taxes" that discourage investment. Cameroon's problems extend beyond President Biya's leadership to a system of distributed corruption. While Olson's model suggests a single dictator might extract resources somewhat efficiently, Biya must keep hundreds of thousands of police, army officers, and civil servants happy. Rather than collecting formal taxes and distributing proceeds, the government tolerates widespread corruption. Police set up roadblocks to extract bribes from travelers, causing enormous inefficiencies. The World Bank found entrepreneurs in Cameroon must spend nearly two years' average income on official fees just to start a business legally. Property transactions cost a fifth of property value, while enforcing unpaid invoices requires 58 separate procedures taking nearly two years. These regulations primarily benefit bureaucrats who use each procedure as an opportunity to extract bribes. Cameroon's "world's worst library" perfectly illustrates how perverse institutional incentives create development failures. This prestigious school's new library - designed like an open book with a valley in the middle - was completely unusable during the five-month rainy season. The project wasted resources that could have funded books, computers, or scholarships. The failure stemmed not from incompetence but from systematic incentive problems: the principal wanted to convert her school into a university and prioritized appearance over function, appointing a former pupil as architect. The tragedy wasn't self-interest - which exists everywhere - but the complete absence of checks and balances to restrain it. Development specialists often focus on improving education and infrastructure, which is sensible but addresses only part of the problem. Economic analysis shows that poor education might make Cameroon twice as poor as it could be, and terrible infrastructure might make it twice as poor again - but this only explains why Cameroon might be four times poorer than the United States, not fifty times poorer. The deeper question is why Cameroonians can't solve these problems themselves when the benefits would clearly outweigh the costs.

第8章

How China Grew Rich: The Greatest Economic Success Story

Standing in Shanghai's People's Park, I'm awestruck by the city's transformation. In just ten years, Shanghai has built a forest of skyscrapers rivaling Manhattan - where once stood only a twelve-story red-brick building. This spectacular development is even more remarkable considering China's troubled history: for most of the 20th century, China was poorer than Cameroon, torn by civil war, devastated by famine in the late 1950s, and its education system destroyed during the Cultural Revolution. Clues to China's success are visible everywhere. The train to Zhengzhou is faster and more punctual than those in England. The country has excellent infrastructure, an impressive education system, and a demographic advantage from the one-child policy that created a large working-age population with substantial savings to fund investment. While market economies struggle to generate savings and investment (as in Cameroon), China's socialist government easily directed about a third of national income into investment. Initially, these investments yielded good returns, with every 100 yuan invested adding 40 yuan to annual output. However, by Mao's death in 1976, returns had fallen to just 18 yuan per 100 invested - a crippling inefficiency given China's massive investment rate. The problem wasn't lack of investment opportunities in a still-poor country, but rather the state's inability to identify the right investments without market signals. Rather than abruptly abandoning central planning - which might have led to economic collapse as in the Soviet Union - Deng adopted a more gradual strategy. In 1985, the size of the "plan" was frozen, allowing state-owned firms to do as they wished with extra production beyond quota. This worked brilliantly because: it was easy to understand with credible commitment; it guaranteed stability while allowing growth; and most importantly, it allowed the market to operate at the margin where efficiency decisions matter most. Efficient firms expanded to meet real demand while inefficient ones remained static. As the economy quadrupled in size between 1985-2003, the planned economy's relative importance shrank dramatically - China literally "grew out of the plan." The Chinese reformers needed to encourage competition without risking unpredictable rapid liberalization. They introduced new competitors gradually: first local-government "township and village enterprises," then private and foreign companies. What mattered wasn't ownership but competition in relatively free markets, which drove down scarcity power and introduced market information and incentives. China's dramatic entry onto the world economic stage was one of the final acts in its economic reform. By engaging with global markets, China gained three advantages: access to world markets for labor-intensive goods; foreign currency to purchase raw materials and technology; and perhaps most importantly, access to modern production and business techniques through foreign investment. China strategically created "special economic zones" like Shenzhen near Hong Kong, where normal command economy rules didn't apply to foreign investors. These zones provided testing grounds for reforms that gradually spread throughout the economy. While China isn't yet rich, it's growing richer faster than any country in history. This economic growth brings tremendous upheaval, with many Chinese confused, unemployed or dislocated. Factory conditions remain terrible - workers like Li Chun Mei die after sixteen-hour shifts, while others suffer horrific injuries. Yet economists argue these sweatshops, despite their harshness, are better than the alternatives and represent steps toward something better. Economics ultimately is about people like Yang Li, who left home to work in a sweatshop, decided factory life wasn't for her, and returned to open her own hair salon. "Every day at the factory was just work, work," she says. "My life here is comfortable... I can close the salon whenever I want." While her parents survived the Cultural Revolution and her grandparents the Great Leap Forward, Yang Li has real choices - and that's what economics is truly about.

★★★★★

『経済は感情で動く――はじめての行動経済学』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

『経済は感情で動く――はじめての行動経済学』の主要テーマ

scarcity power
price targeting
market signaling
information asymmetry
rent seeking

『経済は感情で動く――はじめての行動経済学』の名言

Free markets force truth-telling like Jim Carrey in "Liar, Liar."
Coffee is expensive because rents are high' reverses causality.

『経済は感情で動く――はじめての行動経済学』の登場人物

Tim HarfordAuthor and economist who explains market forces
David Ricardo19th-century economist who identified scarcity
George Bernard ShawPlaywright who critiqued professional associations

著者について

ベストセラー『経済は感情で動く――はじめての行動経済学（原題: The Undercover Economist）』の著者であり、受賞歴のある行動経済学者でもあるティム・ハーフォードは、この基礎的な著作において、機知と厳密な分析を融合させ、日常の経済学を解き明かしています。

フィナンシャル・タイムズ紙のシニア・コラムニストであり、BBCラジオ4のホストも務めるハーフォードは、オックスフォード大学での教育、世界銀行での経験、そして王立統計学会の名誉フェローとしての役割を背景に、意思決定、市場の力、統計リテラシーといったテーマを掘り下げています。また、『だらしない心やめられない習慣（原題: Messy）』や『統計学は最強の武器である（原題: How to Make the World Add Up）』などの高く評価されている他の著書では、イノベーションやデータ・ストーリーテリングをさらに深く分析しています。

ハーフォードのBBCポッドキャスト『More or Less』や『Cautionary Tales』は、複雑な概念を魅力的な物語へと翻訳する彼の評判を確固たるものにしており、TEDトークやシドニー・オペラハウスなどの会場で行われる世界的な講演活動は、彼の分野を超えた影響力を示しています。

経済学への理解を深めた功績により大英帝国勲章（OBE）を受章したハーフォードの著書は、世界中で150万部以上を売り上げ、『経済は感情で動く』は30言語に翻訳されています。

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@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8章

経済は感情で動く――はじめての行動経済学

概要『経済は感情で動く――はじめての行動経済学』の概要

1冊の本。さまざまな聴き方。

The Economics Behind Your Morning Coffee

The Power of Scarcity: Why Your Coffee Costs So Much

聴きながら、すべての言葉を目で追えます

Price Targeting: What Supermarkets Don't Want You to Know

Perfect Markets and the "World of Truth"

『経済は感情で動く――はじめての行動経済学』をもっと深く楽しむ

When Markets Fail: Externalities and Traffic Congestion

Inside Information: Why Markets Sometimes Break Down

聴きながら、すべての言葉を目で追えます

Why Poor Countries Are Poor: Institutions Matter

How China Grew Rich: The Greatest Economic Success Story

『経済は感情で動く――はじめての行動経済学』を最後まで読み終えました

『経済は感情で動く――はじめての行動経済学』の主要テーマ

『経済は感情で動く――はじめての行動経済学』の名言

『経済は感情で動く――はじめての行動経済学』の登場人物

著者について

経済は感情で動く――はじめての行動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 The Undercover Economist by Tim Harford about?

Who should read The Undercover Economist?

Is The Undercover Economist worth reading?

How does The Undercover Economist explain price targeting?

この学習プランの一部

Micro Economy

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 Behind Your Morning Coffee

The Power of Scarcity: Why Your Coffee Costs So Much

聴きながら、すべての言葉を目で追えます

Price Targeting: What Supermarkets Don't Want You to Know

Perfect Markets and the "World of Truth"

『経済は感情で動く――はじめての行動経済学』をもっと深く楽しむ

When Markets Fail: Externalities and Traffic Congestion

Inside Information: Why Markets Sometimes Break Down

聴きながら、すべての言葉を目で追えます

Why Poor Countries Are Poor: Institutions Matter

How China Grew Rich: The Greatest Economic Success Story

『経済は感情で動く――はじめての行動経済学』を最後まで読み終えました

他のユーザーのお気に入り

この学習プランの一部

Micro Economy

もっと見る

『経済は感情で動く――はじめての行動経済学』の概要