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Steven D. Levitt

Nobel Prize Winner Thomas Schelling

I’ve changed addresses 10 times since I graduated from college. And each time I’ve moved, I’ve looked at the battered old box of college notebooks and debated whether it was time to throw the box out. After all, it has been more than 15 years and the box has never once been opened. Thomas Schelling winning the Nobel prize in . . .

10/20/05

A new blog that is way better than ours

There is something called the TED conference, held annually in Monterey, California, which brings together a very high-powered audience of technology big shots and an amazingly diverse set of speakers. When I spoke there a few years ago, the guy best known for being the voice of Roger Rabbit was the speaker who followed me. (Let me just say that . . .

10/14/05

What makes people search for Freakonomics on the web?

Bill Bennett, apparently. Or was it Good Morning America? Or World News Tonight? Or an ad in USA Today? Causality is not always easy to identify. The following chart, kindly supplied by Bill Tancer from www.hitwise.com, documents Freakonomics’ share of the web traffic from the millions of internet users that Hitwise tracks (and for fun, Bill Bennett’s too): Last week . . .

10/9/05

The downside of blogs

To all who enjoy this blog, I apologize for the onslaught of comments from Steve Sailer and the various pseudonyms he operates under. Apparently he believes that if he says the same thing over and over it will turn into the truth, or at least direct some traffic to his website. As far as I can tell he is still . . .

10/9/05

Gladwell on the Ivy League

Malcolm Gladwell’s latest piece in the New Yorker is interesting as always. It is about Ivy League admissions. I particularly like this quote (especially the last sentence): The Ivy League schools justified their emphasis on character and personality, however, by arguing that they were searching for the students who would have the greatest success after college. They were looking for . . .

10/7/05

The New York Times examines why crime fell in New York City

In yesterday’s New York Times, Mike McIntyre writes about the reasons crime has fallen in New York City. Most of the article is about how Mayor Bloomberg claims credit for his police department. The article then goes on to say: Academic experts cite several plausible contributors to the nationwide trend, including an aging population (young men are responsible for most . . .

10/6/05

Found on a blackboard at the University of Chicago

I found this list of what is supposed to be the future winners of the Nobel Prize in Economics on a blackboard at the U of C, for what it is worth. Who knows whether the people who made the list know what they are talking about. There are about 40 people on the list, and about 2 people get . . .

10/6/05

Crime vs Crime Rate

A host of commenters on my Bill Bennett post get very agitated over the question of “crimes” vs. “the crime rate.” The term “crime rate” implies a denominator, typically “per 100,000 residents.” So the number of crimes can fall, but the crime rate can rise if the population shrinks. Bill Bennett said, “But I do know that it’s true that . . .

10/1/05

Bill Bennett and Freakonomics

Bill Bennett and I have a fair amount in common. We’ve both written about crime (his “superpredator” theory gets a quick discussion in Freakonomics), we have both thought a lot about illegal drugs and education (he was the original “drug czar” and is a former Secretary of Education), and we both love to gamble (although it seems I do it . . .

9/30/05

Tired of waiting for hours at the emergency room?

Emergency rooms serve as the front lines in the world of medicine. Many (most?) visits to ERs are not emergencies at all, but rather, routine visits by people with limited access to health care. As a consequence, waiting for hours to be seen is not uncommon. Forced to take all patients, the ER raises the “price” by making you wait. . . .

9/26/05

Planned Parenthood Gets Freaky!

For a long time, the pro-life movement has had a keen sense of how people respond to incentives. Protesters outside of clinics proved to be a very effective strategy for raising the social and moral costs of seeking an abortion. Now a Planned Parenthood clinic in Philadelphia has come up with a very clever strategy for fighting back, called “Pledge-a-Picket:” . . .

9/17/05

What do U-haul prices tell us about America?

Read what Chris Lightfoot has to say about this question here. The origin of the idea for the analysis appears to be in this marginalrevolution post. The idea is that large differences in prices for one-way trips from Detroit to Las Vegas compared to one-way trips the other direction reflects differential migration. The answers aren’t so surprising: the flow tends . . .

9/8/05

Disaster info in the modern world

An amazing website that the guys at Marginal Revolution blogged about. It is called www.scipionus.com. It is a map-based wiki where regular people can insert information geographically about the effects of the storm. There are thousands and thousands of entries. Surfing around, the devastation doesn’t seem as bad on the wiki as it does on TV. Houses a block or . . .

9/4/05

A way for CEOs to put their finger on the pulse of their company?

A while back, Dubner blogged about this website, which tracks moods of the populace. It has some updated information on how Hurricane Katrina made people feel. Wouldn’t it make sense for companies to build something like this into their internal networks? It would allow top managers to have up-to-the-minute information on the state of the employees’ mindset. Done anonymously, people . . .

9/4/05

You know your publisher is big when…

Although it may sometimes seem that Dubner and I are attached at the hip, indeed we do have separate lives. And, in his non-Freakonomics existence, Dubner was recently honored by having a piece he wrote for the New Yorker reprinted in a book entitled “The Best American Crime Writing 2005.” The book comes out next week. Just by chance, it . . .

9/4/05

A few questions about Katrina, New Orleans, and terrorism

The readers of this blog seem to collectively know the answer to just about any question we can think to pose. So here are some questions: 1) How much of the damage/human toll is because of the hurricane per se versus the levees breaking? If we had perfect foresight, would 1,000 well-placed national guardsmen and some heavy machinery have been . . .

9/3/05

Please buy gas!

This e-mail reprinted below, which is circulating incredibly widely, may represent a new low in economic thinking. It declares September 1st “No Gas Day.” I got three copies today. Still, I wasn’t going to blog about it, until I went on the web-search engine technorati and saw that all sorts of bloggers seem to be embracing the concept. So here . . .

8/31/05

The betting site for big thinkers

I love to gamble. Personally, I’m pretty content with the menu of bets you can find at the typical internet sports book: NFL, Nascar, the next winner of American Idol, etc. But for the deeper thinkers among you, there is a great “betting” site called www.longbets.com. The wagers there are a little more exotic. Mitch Kapor and Ray Kurzweil, for . . .

8/27/05

Betting on Peak Oil

John Tierney wrote a great New York Times column in response to the Maass article on Peak Oil in the Sunday NY Times Magazine that I criticized. Tierney and Matthew Simmons, who is the point man for the Peak Oil team, made a $10,000 bet as to whether in 2010 oil would be above or below $200 a barrel (adjusted . . .

8/24/05

The highest praise anyone could ever give

I got this e-mail from a fan yesterday:I read Freakonomics and was — to say the least — floored. You are a brilliant thinker and honestly, you remind me of me.

8/24/05

“Peak Oil”:Welcome to the Media’s New Version of Shark Attacks

The cover story of the New York Times Sunday Magazine written by Peter Maass is about “Peak Oil.” The idea behind “peak oil” is that the world has been on a path of increasing oil production for many years, and now we are about to peak and go into a situation where there are dwindling reserves, leading to triple-digit prices . . .

8/21/05

What do the Kansas City Royals and my iPod have in common?

On the surface, not much. The Kansas City Royals have lost 19 straight games and are threatening to break the all-time record for futility in major league baseball. My iPod, on the other hand, has quickly become one of my most beloved material possessions. So what do they have in common? They both can teach us a lesson about randomness. . . .

8/20/05

What percentage of Freakonomics readers are mentally ill?

If you believe a recent study, a good guess is 25%. At least that is the estimate for American adults overall. And over a lifetime, an estimated 46% of Americans will suffer from mental illness. There is an interesting post on the “Done as a Society” blog that applies Freakonomics-type thinking to this result. Some thoughts: 1) When I entered . . .

8/18/05

More stories about Sophie and Chinese labor

I wasn’t trying to be pejorative in my last post when I said that in China/Hong Kong there are five people doing the job one American would typically do. I didn’t mean that the five Chinese workers necessarily did no better than the one American worker, it was more a statement about how workers are allocated. At our hotel in . . .

8/10/05

On the topic of epidemics, a story about SARS

At the Hong Kong airport, you are required to pass through an area that uses some sort of technology to detect body temperature. If you have a very high fever, they pounce on you and presumably quarantine you because of fear of SARS. I adopted my daughter Sophie from China. She had two defining traits when we first adopted her. . . .

8/9/05

Something worth worrying about: the avian flu

I’ve long felt like a flu epidemic is one of the biggest external threats to the U.S. right now when measured in expected lives lost over the next ten years. Reading John Barry’s book “The Great Influenza” is very sobering, but worthwhile. It sounds crazy, but on the long list of things I’d like to do that I never get . . .

8/9/05

What do you think Stetson Kennedy reads in the tub?

We received this e-mail message today, from Klan buster Stetson Kennedy’s assistant: Thought you’d be proud to know that Stetson is reading your book every night as he soaks in the tub. Not all books he reads have the honor of being a “tub read.” Stetson turns 89 in early October. His website, well worth a visit, can be found . . .

8/4/05

With Atkins diet company bankrupt, what’s the next weight loss fad? We have an idea, but you will have to wait.

First, let me start by saying that we know we have been remiss about posting on the blog. Tomorrow, there will be a blow-by-blow account of our California trip. Until then, let me just throw out a little something. I was shocked to hear that Atkins Nutritionals, Inc. declared bankruptcy. Not because I’m surprised that the number of people on . . .

8/3/05

Plastic knives and Alanis Morissette

I’ve flown first class exactly twice in the last five years. The first time was right after 9/11. At the time I was struck by how ludicrous it is that they provided metal forks and spoons, but plastic knives. The idea was that terrorists would take over the plane using metal table knives (perhaps in combination with the nail clippers . . .

7/27/05

A letter the NY Times chose not to print

Thomas Bzik sent us this interesting letter, which he also submitted to NY Times magazine, but they did not publish. We have no idea about the accuracy of the factual claims made in his letter, but I see no reason why he would make them up: ——– Subject: Child Safety Seats FYI, My first professional job as a statistician was . . .

7/24/05

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