Steven D. Levitt

A Rogue Economist Explores the Hidden Side of Everything Which is more dangerous, a gun or a swimming pool? What do schoolteachers and sumo wrestlers have in common? Why do drug dealers still live with their moms? How much do parents really matter? How did the legalization of abortion affect the rate of violent crime? These may not sound like typical questions for an economist to ask. But Steven D. Levitt is not a typical economist. He is a much-heralded scholar who studies the riddles of everyday life—from cheating and crime to sports and child-rearing—and whose conclusions turn the conventional wisdom on its head. Freakonomics is a ground-breaking collaboration between Levitt and Stephen J. Dubner, an award-winning author and journalist. They usually begin with a mountain of data and a simple, unasked question. Some of these questions concern life-and-death issues; others have an admittedly freakish quality. Thus the new field of study contained in this book: Freakonomics. Through forceful storytelling and wry insight, Levitt and Dubner show that economics is, at root, the study of incentives—how people get what they want, or need, especially when other people want or need the same thing. In Freakonomics, they explore the hidden side of … well, everything. The inner workings of a crack gang. The truth about real-estate agents. The myths of campaign finance. The telltale marks of a cheating schoolteacher. The secrets of the Ku Klux Klan. What unites all these stories is a belief that the modern world, despite a great deal of complexity and downright deceit, is not impenetrable, is not unknowable, and—if the right questions are asked—is even more intriguing than we think. All it takes is a new way of looking at things. Freakonomics establishes this unconventional premise: If morality represents how we would like the world to work, then economics represents how it actually does work. It is true that readers of this book will be armed with enough riddles and stories to last a thousand cocktail parties. ButFreakonomics can provide more than that. It will literally redefine the way we view the modern world. First published in the U.S. in 2005, Freakonomics went on to sell more than 4 million copies around the world, in 35 languages. It also inspired a follow-up book, SuperFreakonomics; a high-profile documentary film; a radio program, and an award-winning blog, which has been called “the most readable economics blog in the universe.”

In celebration of the 10th anniversary of the landmark book Freakonomics FreakonomicsOver the past decade, Steven D. Levitt and Stephen J. Dubner have published more than 8,000 blog posts on Freakonomics.com. Many of them, they freely admit, were rubbish. But now they've gone through and picked the best of the best. You'll discover what people lie about, and why; the best way to cut gun deaths; why it might be time for a sex tax; and, yes, when to rob a bank. (Short answer: never; the ROI is terrible.) You'll also learn a great deal about Levitt and Dubner's own quirks and passions, from gambling and golf to backgammon and the abolition of the penny.

The New York Times bestselling Freakonomics was a worldwide sensation, selling more than four million copies in thirty-five languages and changing the way we look at the world.Steven D. Levitt and Stephen J. Dubner return with Superfreakonomics, and fans and newcomers alike will find that the freakquel is even bolder, funnier, and more surprising than the first.SuperFreakonomics challenges the way we think all over again, exploring the hidden side of everything with such questions as:How is a street prostitute like a department-store Santa?What do hurricanes, heart attacks, and highway deaths have in common?Can eating kangaroo save the planet?Levitt and Dubner mix smart thinking and great storytelling like no one else. By examining how people respond to incentives, they show the world for what it really is-good, bad, ugly, and, in the final analysis, super freaky. Freakonomics has been imitated many times over-but only now, with SuperFreakonomics, has it met its match.

"Over the last thirty years, the use of child safety seats in motor vehicles has increased dramatically, fueled by well publicized information campaigns and legal mandates. In spite of this movement, there is relatively little empirical evidence regarding the efficacy of child safety seats relative to the much cheaper alternative of traditional seat belts. Using data from the Fatality Analysis Reporting System (FARS) on all fatal crashes in the United States from 1975-2003, I find that child safety seats, in actual practice, are no better than seat belts at reducing fatalities among children aged 2-6. This result is robust to a wide range of sensitivity analyses, including controlling for sample selection that arises because the FARS data set includes only crashes in which at least one fatality occurs"--National Bureau of Economic Research web site.

"Agents are often better informed than the clients who hire them and may exploit this informational advantage. Real-estate agents, who know much more about the housing market than the typical homeowner, are one example. Because real estate agents receive only a small share of the incremental profit when a house sells for a higher value, there is an incentive for them to convince their clients to sell their houses too cheaply and too quickly. We test these predictions by comparing home sales in which real estate agents are hired by others to sell a home to instances in which a real estate agent sells his or her own home. In the former case, the agent has distorted incentives; in the latter case, the agent wants to pursue the first-best. Consistent with the theory, we find homes owned by real estate agents sell for about 3.7 percent more than other houses and stay on the market about 9.5 days longer, even after controlling for a wide range of housing characteristics. Situations in which the agent's informational advantage is larger lead to even greater distortions"--National Bureau of Economic Research web site.

Ben shu zuo zhe tong guo jing ji xue yan jiu fang fa, Ti chu le fan chang si wei de yi xie zhun ze, Yi tu po chang gui de si wei fang shi lai jie jue sheng huo zhong de fu za wen ti, Che di gai bian ni jie jue wen ti de si lu he fang fa. Nei rong she ji bo ke yu ping zhuang shui you he gong tong dian, Wo men zhi shi xiang bang mang, Shou yin zhe lin bo han he zai xing wei en, Gao you jia wan sui deng.

The book that can teach anyone to think like a freak