as well as the earlier passage about the same boy on pp. 155-56, was drawn from author interviews and from Ted Kaczynski, Truth Versus Lies, unpublished manu- script, 1998; see also Stephen J. Dubner, "I Dont Want to Live Long. I Would Rather Get the Death Penalty than Spend the Rest of My Life in Prison," Time, October 18, 1999. 206-7 the black boy from daytona beach: This passage, as well as the earlier passage about the same boy on p. 156, were drawn from author interviews with Roland G. Fryer Jr. A ckno wledgment s and Colin Camerer. And to Linda Jines, who came up with the title: nicely done. PERSONAL ACKNOWLEDGMENTS I owe an enormous debt to my many co-authors and colleagues, whose great ideas fill this book, and to all the kind people who have taken the time to teach me what I know about economics and life. I am especially grateful to the University of Chicago, whose Initiative on Chicago Price Theory provides me the ideal research home; and also to the American Bar Foundation for its collegiality and support. My wife, Jeannette, and our children, Amanda, Olivia, Nicholas, and Sophie, make every day a joy, even though we miss Andrew so much. I thank my parents, who showed me it was okay to be different. Most of all, I want to thank my good friend and co-author Stephen Dub- ner, who is a brilliant writer and a creative genius. -S. D. L.