"A marvelous book... thought provoking and highly entertaining."
-Jerome Groopman, New York Times bestselling author of How Doctors Think

"Ariely not only gives us a great read; he also makes us much wiser."
-George Akerlof, 2001 Nobel Laureate in Economics

"Revolutionary."
-New York Times Book Review

Why do our headaches persist after we take a one-cent aspirin but disappear when we take a fifty-cent aspirin? Why do we splurge on a lavish meal but cut coupons to s ...