Predictably Irrational, Revised and Expanded Edition: The Hidden Forces That Shape Our Decisions Paperback – April 27, 2010 by Dan Ariely (Author).

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 save twenty-five cents on a can of soup?

When it comes to making decisions in our lives, we think we're making smart, rational choices. But are we?

In this newly revised and expanded edition of the groundbreaking New York Times bestseller, Dan Ariely refutes the common assumption that we behave in fundamentally rational ways. From drinking coffee to losing weight, from buying a car to choosing a romantic partner, we consistently overpay, underestimate, and procrastinate. Yet these misguided behaviors are neither random nor senseless. They're systematic and predictable—making us predictably irrational.

Product details

• Format Paperback | 348 pages
• Dimensions 106 x 171 x 23mm | 172g
• Publication date 24 Jun 2011
• Publisher Harper
• Publication City/Country United States
• Language English
• Edition Statement Revised and updated edition.
• Illustrations note black & white illustrations, black & white line drawings, black & white tables
• ISBN13 9780062018205