Steven D. Levitt · 320 pages
Rating: (568.2K votes)
“Morality, it could be argued, represents the way that people would like the world to work, wheareas economics represents how it actually does work.”
“The conventional wisdom is often wrong.”
“Information is a beacon, a cudgel, an olive branch, a deterrent--all depending on who wields it and how.”
“As W.C. Fields once said: a thing worth having is a thing worth cheating for.”
“After all, your chances of winning a lottery and of affecting an election are pretty similar. From a financial perspective, playing the lottery is a bad investment. But it's fun and relatively cheap: for the price of a ticket, you buy the right to fantasize how you'd spend the winnings - much as you get to fantasize that your vote will have some impact on policy.”
“An incentive is a bullet, a key: an often tiny object with astonishing power to change a situation”
“Social scientists sometimes talk about the concept of "identity". It is the idea that you have a particular vision of the kind of person you are, and you feel awful when you do things that are out of line with that vision.”
“If you both own a gun and a swimming pool in your backyard, the swimming pool is about 100 times more likely to kill a child than the gun is.”
“When a woman does not want to have a child, she usually has good reason. She may be unmarried or in a bad marriage. She may consider herself too poor to raise a child. She may think her life is too unstable or unhappy, or she may think that her drinking or drug use will damage the baby’s health. She may believe that she is too young or hasn’t yet received enough education. She may want a child badly but in a few years, not now. For any of a hundred reasons, she may feel that she cannot provide a home environment that is conducive to raising a healthy and productive child.”
“A rogue economist explores the hidden side of everything.”
“Levitt admits to having the reading interests of a tweener girl, the Twilight series and Harry Potter in particular.”
“An expert must be BOLD if he hopes to alchemize his homespun theory into
conventional wisdom.”
“But as incentives go, commissions are tricky. First of all, a 6 percent real-estate commission is typically split between the seller’s agent and the buyer’s. Each agent then kicks back roughly half of her take to the agency. Which means that only 1.5 percent of the purchase price goes directly into your agent’s pocket. So on the sale of your $300,000 house, her personal take of the $18,000 commission is $4,500. Still not bad, you say. But what if the house was actually worth more than $300,000? What if, with a little more effort and patience and a few more newspaper ads, she could have sold it for $310,000? After the commission, that puts an additional $9,400 in your pocket. But the agent’s additional share—her personal 1.5 percent of the extra $10,000—is a mere $150. If you earn $9,400 while she earns only $150, maybe your incentives aren’t aligned after all.”
“The swimming pool is almost 100 times more likely to kill a child than the gun is.”
“As we suggested near the beginning of this book, if morality represents an ideal world, then economics represents the actual world.”
“The ECLS data do show, for instance, that a child with a lot of books in his home tends to test higher than a child with no books.”
“But in both instances, the dissemination of the information diluted its power. As Supreme Court Justice Louis D. Brandeis once wrote, "Sunlight is said to be the best of disinfectants.”
“Since the science of economics is primarily a set of tools, as opposed to a subject matter, then no subject, however offbeat, need be beyond its reach.”
“It is well and good to opine or theorize about a subject, as humankind is wont to do, but when moral posturing is replaced by an honest assessment of the data, the result is often a new, surprising insight.”
“Turns out that a real-estate agent keeps her own home on the market an average of ten days longer and sells it for an extra 3-plus percent, or $10,000 on a $300,000 house.”
“Congress passed legislation requiring a five-year mandatory sentence for selling just five grams of crack; you would have to sell 500 grams of powder cocaine to get an equivalent sentence. This disparity has often been called racist, since it disproportionately imprisons blacks.”
“Experts depend on the fact that you don’t have the information they do. Or that you are so befuddled by the complexity of their operation that you wouldn’t know what to do with the information if you had it. Or that you are so in awe of their expertise that you wouldn’t dare challenge them.”
“And while it sounds bad to hear that Americans underpay their taxes by nearly one-fifth, the tax economist Joel Slemrod estimates that the U.S. is easily within the upper tier of worldwide compliance rates.”
“When moral posturing is replaced by an honest assessment of the data, the result is often a new, surprising insight.”
“la economía como ciencia consiste fundamentalmente en un conjunto de herramientas, más que una cuestión de contenido, ningún tema se halla fuera de su alcance.”
“There are three basic flavors of incentive: economic, social, and moral. Very often a single incentive scheme will include all three varieties. Think about the anti-smoking campaign of recent years. The addition of a $3-per-pack “sin tax” is a strong economic incentive against buying cigarettes. The banning of cigarettes in restaurants and bars is a powerful social incentive. And when the U.S. government asserts that terrorists raise money by selling black-market cigarettes, that acts as a rather jarring moral incentive.”
“But one need not oppose abortion on moral or religious grounds to feel shaken by the notion of a private sadness being converted into a public good.”
“It was Klan custom, for instance, to append a Kl to many words. (Thus would two Klansmen hold a Klonversation in the local Klavern.)”
“A woman's income appeal is a bell-shaped curve: men do not want to date low-earning women, but once a woman starts earning too much, they seem to be scared off.”
“The fear created by commercial experts may not quite rival the fear created by terrorists like the Ku Klux Klan, but the principle is the same.”
“Standing at the original Victorian counter was a man in a long black leather coat. His hair had been grown to counteract its unequivocal retreat from the top of his head, and was fashioned into a mean, frail ponytail that hung limply down his back. Blooms of acne highlighted his vampire-white skin.”
“Maybe because the Dark can only reach people at extremes; blinded by their own shining ideas, or locked up in the darkness of their own heads.”
“Every one has some fault but also some virtue … something that distinguishes it from all the others … gives it a personality. I”
“Only a fool tries to reconstruct a bunch of grapes from a bottle of wine.”
“We were tired of living in a world that revolved around fixing our weaknesses. Society’s relentless focus on people’s shortcomings had turned into a global obsession. What’s more, we had discovered that people have several times more potential for growth when they invest energy in developing their strengths instead of correcting their deficiencies.”
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