Predictably Irrational

A marvelous book that is both thought provoking and highly entertaining, ranging from the power of placebos to the pleasures of Pepsi.
- Jerome Groopman


	Chapter 4 The Cost of Social Norms Back to Videos.

When we make decisions we think we're in control, making rational choices. But are we? Entertaining and surprising, Ariely unmasks the subtle but powerful tricks that our minds play on us.