Predictably Irrational: The Hidden Forces that Shape Our Decisions

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HarperCollins Publishers, Mar 6, 2009 - Psychology - 304 pages

Why do smart people make irrational decisions every day? The answers will surprise you. Predictably Irrational is an intriguing, witty and utterly original look at why we all make illogical decisions.

Why can a 50p aspirin do what a 5p aspirin can't? If an item is "free" it must be a bargain, right? Why is everything relative, even when it shouldn't be? How do our expectations influence our actual opinions and decisions?

In this astounding book, behavioural economist Dan Ariely cuts to the heart of our strange behaviour, demonstrating how irrationality often supplants rational thought and that the reason for this is embedded in the very structure of our minds.

Predicatably Irrational brilliantly blends everyday experiences with a series of illuminating and often surprising experiments, that will change your understanding of human behaviour. And, by recognising these patterns, Ariely shows that we can make better decisions in business, in matters of collective welfare, and in our everyday lives from drinking coffee to losing weight, buying a car to choosing a romantic partner.

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User Review  - AnnaWaffles - LibraryThing

On the one side, this book is quite accessibly written and highlights a variety of irrational behaviors that the average person may not already be aware of. On the other side, as a psychology major, I ... Read full review

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User Review  - andycyca - LibraryThing

The title really describes Airely's thesis: the fact that humans are not only irrational (that is, we base our decisions on subjective bases) but *predictably* irrational. In other words, we engage in ... Read full review

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About the author (2009)

Dan Ariely is the Alfred P. Sloan Professor of Behavioral Economics at MIT. His work has been featured in leading scholarly journals as well as a variety of popular media outlets, including the New York Times, Wall Street Journal, Washington Post, Boston Globe, Business 2.0, Scientific American, and Science. He has also been featured on CNN and National Public Radio. Dan publishes widely in the leading scholarly journals in economics, psychology, and business. His work has been featured in a variety of media including The New York Times, Wall Street Journal, Washington Post, Boston Globe, Business 2.0, Scientific American, Science and CNN. He splits his time between Princeton, NJ, and Cambridge, MA.

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