is a 2005 non-fiction book by University of Chicago economist Steven Levitt and New York Times journalist Stephen J. Dubner. The book has been described as melding pop culture with economics, but has also been decried as "amateur sociology." By late 2009, it had sold over 4 million copies worldwide. The book is a collection of 'economic' articles written by Levitt, an expert who has already gained a reputation for applying economic theory to diverse subjects not usually covered by "traditional" economists; he does, however, accept the standard neoclassical microeconomic model of rational utility-maximization. In Freakonomics, Levitt and Dubner argue that economics is, at root, the study of incentives.One example of the Steven D. Levitt, Stephen J. Dubner's use of economic theory in Freakonomics involves demonstrating the existence of cheating among sumo wrestlers. In a sumo tournament, all wrestlers in the top division compete in 15 matches and face demotion if they do not win at least eight of them. The sumo community is very close-knit, and the wrestlers at the top levels tend to know each other well. The authors looked at the final match, and considered the case of a wrestler with seven wins, seven losses, and one fight to go, fighting against an 8-6 wrestler. Statistically, the 7-7 wrestler should have a slightly below even chance, since the 8-6 wrestler is slightly better. However, the 7-7 wrestler actually wins around 80% of the time. Levitt uses this statistic and other data gleaned from sumo wrestling matches, along with the effect that allegations of corruption have on match results, to conclude that those who already have 8 wins collude with those who are 7-7 and let them win, since they have already secured their position for the following tournament. The authors attempt to demonstrate the power of data mining. Many of their results emerge from Levitt's analysis of various databases, and asking the right questions. Authors posit that various incentives encourage teachers to cheat by assisting their students with multiple-choice high-stakes tests. Such cheating in the Chicago school system is inferred from detailed analysis of students' answers to multiple choice questions. But first Levitt asks, "What would the pattern of answers look like if the teacher cheated?" The simple answer: difficult questions at the end of a section will be more correct than easy ones at the beginning.
Reappraisals: In Chapter 2 of Freakonomics, the authors wrote of their visit to folklorist Stetson Kennedy's Florida home where the topic of Kennedy's investigations of the Ku Klux Klan were discussed. However, in their January 8, 2006 column in the New York Times Magazine, Dubner and Levitt wrote of questions about Stetson Kennedy's research ("Hoodwinked" pp 26-28) leading to the conclusion that Kennedy's research was at times embellished for effectiveness. In the "Revised and Expanded Edition" this embellishment was noted and corrected: "Several months after Freakonomics was first published, it was brought to our attention that this man's portrayal of his crusade, and various other Klan matters, was considerably overstated....we felt it was important to set straight the historical record."
Criticism: Freakonomics has been criticised for being a work of sociology and criminology, rather than economics. Israeli economist Ariel Rubinstein criticised the book for making use of dubious statistics and complained that "economists like Levitt ... have swaggered off into other fields", saying that the "connection to economics ... [is] none" and that the book is an example of "academic imperialism". Arnold Kling has suggested the book is an example of "amateur sociology".
Publishing history: Freakonomics peaked at number two among nonfiction on The New York Times Best Seller list and was named the 2006 Book Sense Book of the Year in the Adult Nonfiction category. The book received positive reviews from critics. The review aggregator Metacritic reported the book had an average score of 67 out of 100, based on 16 reviews. The success of the book has been partly attributed to the blogosphere. In the campaign prior to the release of the book in April 2005, the publisher (William Morrow and Company) chose to target bloggers in an unusually strategical way, sending galley copies to over a hundred of them, as well as contracting two specialized word of mouth (buzz marketing) agencies. In 2006, the Revised and Expanded Edition of the book was published, with the most significant corrections in the second chapter.
Freakonomics blog: The authors started their own Freakonomics blog, which is "meant to keep the conversation going", in 2005. In May 2007, writer and blogger Melissa Lafsky was hired as the full time editor of the site. In August 2007, the blog was incorporated into The New York Times' web site – the authors had been writing joint columns for The New York Times Magazine since 2004 – and the domain Freakonomics.com became a redirect there. In March 2008, Annika Mengisen replaced Lafsky as the blog editor. Among the recurrent guest bloggers on the Freakonomics blog are Ian Ayres, Daniel Hamermesh, Eric A. Morris, Sudhir Venkatesh, Justin Wolfers and others.
Film adaptation: In 2010, Chad Troutwine, Chris Romano, and Dan O'Meara produced a documentary film adaptation with a budget of nearly $3 million in an omnibus format by directors Seth Gordon, Morgan Spurlock, Alex Gibney, Eugene Jarecki, Rachel Grady, and Heidi Ewing. It was the Closing Night Gala premiere film at the Tribeca Film Festival on April 30, 2010. It was also the Opening Night film at the AFI/Discovery SilverDocs film festival on June 21, 2010. Magnolia Pictures has acquired distribution rights for a Fall 2010 release.
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