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Predictably Irrational, Revised and Expanded Edition: The Hidden Forces That Shape Our Decisions Paperback – Illustrated, April 27, 2010

4.5 out of 5 stars 2,228 ratings

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Editorial Reviews

Review

“This is a wonderful, eye-opening book. Deep, readable, and providing refreshing evidence that there are domains and situations in which material incentives work in unexpected ways. We humans are humans, with qualities that can be destroyed by the introduction of economic gains. A must read!” (Nassim Nicholas Taleb, New York Times bestselling author of The Black Swan: The Impact of the Highly Improbable)

“Sly and lucid. . . . Predictably Irrational is a far more revolutionary book than its unthreatening manner lets on.” (New York Times Book Review)

“Surprisingly entertaining. . . . Easy to read. . . . Ariely’s book makes economics and the strange happenings of the human mind fun.” (USA Today)

“A fascinating romp through the science of decision-making that unmasks the ways that emotions, social norms, expectations, and context lead us astray.” (Time magazine)

“In creative ways, author Dan Ariely puts rationality to the test. . . . New experiments and optimistic ideas tumble out of him, like water from a fountain.” (Boston Globe)

“An entertaining tour of the many ways people act against their best interests, drawing on Ariely’s own ingeniously designed experiments. . . . Personal and accessible.” (BusinessWeek)

“Ariely’s book addresses some weighty issues . . . with an unexpected dash of humor.” (Entertainment Weekly)

“Inventive. . . . An accessible account. . . . Ariely is a more than capable storyteller . . . If only more researchers could write like this, the world would be a better place.” (Financial Times)

“Ariely’s intelligent, exuberant style and thought-provoking arguments make for a fascinating, eye-opening read.” (Publishers Weekly)

“A taxonomy of financial folly.” (The New Yorker)

From the Back Cover

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.


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4.5 out of 5 stars
4.5 out of 5
2,228 customer ratings
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Reviewed in the United States on March 7, 2017
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Top international reviews

Alok Kejriwal
5.0 out of 5 stars Just get this book. That's it.
Reviewed in India on August 11, 2019
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Susan Stepney
5.0 out of 5 stars Several of the examples will be useful to help avoid faulty reasoning in certain cases
Reviewed in the United Kingdom on January 1, 2019
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Nick Michelioudakis
5.0 out of 5 stars A Review - for Educators
Reviewed in the United Kingdom on July 14, 2016
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Tony James Slater
5.0 out of 5 stars Brain-exploding potential!
Reviewed in the United Kingdom on July 17, 2015
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Luke
4.0 out of 5 stars Makes you (the consumer) feel somewhat foolish for falling for the marketing tricks
Reviewed in the United Kingdom on February 21, 2017
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Adrian Haberberg
4.0 out of 5 stars A good book, but there are better ones out there
Reviewed in the United Kingdom on September 18, 2018
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T. Wilson
5.0 out of 5 stars Don't dither, just read it now!
Reviewed in the United Kingdom on March 24, 2016
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CyberBr1an
5.0 out of 5 stars Enjoyable, well written book. Learn why everybody is intrinsically irrational.
Reviewed in the United Kingdom on November 14, 2018
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S
5.0 out of 5 stars Interesting read
Reviewed in the United Kingdom on April 11, 2014
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Matt
5.0 out of 5 stars An insightful journey of our daily decisions
Reviewed in the United Kingdom on January 13, 2020
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Elly
5.0 out of 5 stars Makes you think of the decisions you make
Reviewed in the United Kingdom on May 8, 2020
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N Mehta
5.0 out of 5 stars Absolutely great book!
Reviewed in the United Kingdom on January 26, 2020
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Undomestic Goddess
5.0 out of 5 stars An incredibly engaging and thought-provoking read.
Reviewed in the United Kingdom on September 23, 2010
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sgh100
5.0 out of 5 stars Interesting, well written
Reviewed in the United Kingdom on November 13, 2018
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T. Akinjide-Obonyo
5.0 out of 5 stars Why you do what you do?
Reviewed in the United Kingdom on March 15, 2010
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