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.
In Predictably Irrational (2008), Ariely explored the reasons why human beings frequently put aside common sense and why bad things often happen when they do. Here, in this equally entertaining and clever follow-up, Ariely shows us the other side of the irrationality coin: the beneficial outcomes and pleasant surprises that often arise from irrational behavior. Although pleasant should be taken as a relative term, since the outcomes are not necessarily pleasant for the person who was behaving irrationally. Take, for example, Thomas Edison’s obsession with DC current, and his irrational hatred of AC: trying to prove how dangerous AC was, he inadvertently—with his development of the electric chair—demonstrated to the world how powerful it could be.