3-6 The Fall and Fall of Crime: The crime-drop argument can be found in

Steven D. Levitt, "Understanding Why Crime Fell in the 1990s: Four Fac- tors That Explain the Decline and Six That Do Not," Journal of Economic Perspectives 18, no. 1 (2004), pp. 163-90. / 3-4 The superpredator: See Eric Pooley, "Kids with Guns," New York Magazine, August 9, 1991; John

J. DiIulio Jr., "The Coming of the Super-Predators," Weekly Standard, No- vember 27, 1995; Tom Morganthau, "The Lull Before the Storm?" Newsweek, December 4, 1995; Richard Zoglin, "Now for the Bad News: A Teenage Time Bomb," Time, January 15, 1996; and Ted Gest, "Crime Time Bomb," U.S. News & World Report, March 25, 1996. / 4 James Alan Foxs dire predictions can be found in a pair of government reports: "Trends in Juvenile Violence: A Report to the United States Attorney General on Cur- rent and Future Rates of Juvenile Offending" (Washington, D.C.: Bureau of Justice Statistics, 1996) and "Trends in Juvenile Violence: An Update" (Washington, D.C.: Bureau of Justice Statistics, 1997). / 4 President Clintons fearful comment came during a 1997 speech in Boston announc- ing new anti-crime measures; see Alison Mitchell, "Clinton Urges Cam- paign Against Youth Crime," New York Times, February 20, 1997.

/ 5-6 The story of Norma McCorvey/Jane Roe: See Douglas S. Wood, "Who Is Jane Roe?: Anonymous No More, Norma McCorvey No Longer Supports Abor- tion Rights," CNN.com, June 18, 2003; and Norma McCorvey with Andy Meisler, I Am Roe: My Life, Roe v. Wade, and Freedom of Choice (New York: HarperCollins, 1994). /

6 The abortion-crime link is argued in two papers by Steven D. Levitt and John J. Donohue III: "The Impact of Legalized Abortion on Crime," Quarterly Journal of Economics 116, no.

2 (2001), pp. 379-420; and "Further Evidence That Legalized Abortion Lowered Crime: A Response to Joyce," Journal of Human Resources 39, no. 1 (2004), pp. 29-49.

7-9 the real real-estate story: The study measuring how a real-estate agent treats the sale of her own home versus a clients home is Steven D. Levitt and Chad Syverson, "Market Distortions When Agents Are Better Informed: A Theoretical and Empirical Exploration of the Value of Information in Real Estate Transactions," National Bureau of Economic Research working paper, 2005. / 7-8 The lax California auto mechanics are discussed in Thomas Hubbard, "An Empirical Examination of Moral Hazard in the Vehicle Inspection Market," RAND Journal of Economics 29, no. 1 (1998), pp.

406-26; and in Thomas Hubbard, "How Do Consumers Motivate Ex- perts? Reputational Incentives in an Auto Repair Market," Journal of Law & Economics 45, no. 2 (2002), pp. 437-68. / 8 Doctors who perform extra