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The Upside of Irrationality: The Unexpected Benefits of Defying Logic at Work and at Home Hardcover – Deckle Edge, June 1, 2010

4.5 4.5 out of 5 stars 1,007 ratings

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“Dan Ariely is a genius at understanding human behavior: no economist does a better job of uncovering and explaining the hidden reasons for the weird ways we act.” — James Surowiecki, author of The Wisdom of Crowds

Behavioral economist and New York Times bestselling author of Predictably Irrational Dan Ariely returns to offer a much-needed take on the irrational decisions that influence our dating lives, our workplace experiences, and our temptation to cheat in any and all areas. Fans of Freakonomics, Survival of the Sickest, and Malcolm Gladwell’s Blink and The Tipping Point will find many thought-provoking insights in The Upside of Irrationality.

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4.5 out of 5 stars
1,007 global ratings

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Customers find the book engaging and easy to read. They appreciate the interesting research and thought-provoking topics. However, opinions differ on how entertaining the book is. Some find it fun and simple, while others feel it lacks interest and wastes time.

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90 customers mention "Readability"81 positive9 negative

Customers find the book easy to read and engaging. They describe it as a well-written, thought-provoking read that leaves them satisfied and relieved to understand. Readers praise Dan Ariely as an accessible writer and say the book is clever without being wise.

"...The Upside of Irrationality" is a very thought-provoking book written by a believable and articulate professional...." Read more

"...Though the ideas it presents are not what you would expect, it’s an easy read, and you’ll find yourself going through the book very quickly while..." Read more

"...While I found the entire book fascinating and a "must-read" book for those seeking to understand human behavior and decision making the #1 takeaway..." Read more

"...As a whole, this is a great, easy to read book...." Read more

76 customers mention "Insight"65 positive11 negative

Customers find the book interesting and thought-provoking. They appreciate the author's sense of humor and the well-established research paired with fresh questions. The book is educational and entertaining, providing practical information with broad application. It explores human behavior and helps readers understand themselves and their actions.

"...There is plenty of actual and anecdotal evidence to support this idea...." Read more

"...-All in all, there are very good and thought provoking ideas presented that can’t all be digested with just one reading...." Read more

"...with which he discusses his various topics that he is learned and intelligent which is also supported by the fact that he was a professor at MIT and..." Read more

"...I found the results fascinating, even when somewhat predicable...that people self-select based on attractiveness level and that, while we prefer..." Read more

20 customers mention "Enjoyment"10 positive10 negative

Customers have mixed reviews about the book. Some find it entertaining and simple, while others feel it's not as fascinating as they had hoped for. They mention it wastes time with meaningless information and lacks learning points.

"...While I did find the book to be entertaining, I also found that it gave less attention and analysis to actual economic principles than the first..." Read more

"...My only complaint with this book is that at times it is a bit too tedious and seems to repeat itself at certain parts...." Read more

"...Ariely makes all of his experiments accessible. Amusing and thought provoking...." Read more

"...How stupid and also irresponsible to suggest this. I absolutely disagree with this conclusion...." Read more

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Top reviews from the United States

  • Reviewed in the United States on May 22, 2013
    Ariely writes about behavioral economics: "We don't assume that people are perfectly sensible, calculating machines. Instead, we observe how people actually behave, and quite often our observations lead us to the conclusion that human beings are irrational."

    No one ever admits to being irrational, yet we frequently witness irrational behavior in others. After reading the book, I'll have to begrudgingly admit that I'm not perfectly rational either !

    Throughout the 11 chapters of the book, various premises are tested by designing some easy to measure field tests which challenge our assumptions about behavior. The book is segregated into two sections - the first on "Ways we Defy Logic at Work" (Chapters 1 through 5) and "Ways We Defy Logic at Home" (Chapters 6 through 10).

    In Chapter 1, Ariely discusses the banking meltdown of 2008 and posits that huge bonuses don't work to incent better performance. There is plenty of actual and anecdotal evidence to support this idea. In Chapter 2, he discusses various situations and experiments that demonstrate how important it is to each of us to imbue meaning in our work and to have meaningful work. There is a deep interconnection between identity and labor. Chapter 3, "The Ikea Effect" describes why we are so much more attached to things that we helped to produce, rather than things we did not have a hand in - "labor begets love". The NIH (not invented here) syndrome is discussed in Chapter 4. The NIH factor is called the "toothbrush theory" - everyone wants one, everyone needs one, everyone has one, but no one wants to use anyone else's. Chapter 5 discusses the irrational behavior of revenge which is one of the deepest-seated instincts we have. Ariely wrote: "The threat of revenge can serve as an effective enforcement mechanism that supports social cooperation and order."

    In Part II (defying logic at home), there are some very interesting chapters on adaptation - how we get used to things and rationalize both bad and good situations. The chapters on dating and online dating are quite fascinating. Chapters 9 and 10 cover empathy and emotion and why we are more motivated to donate to a single suffering individual than to a larger cause by which thousands or millions of people are affected.

    The final chapter summarizes and encourages us to recognize the upside of irrationality: "some of the ways in which we are irrational are also what makes us wonderfully human."

    "The Upside of Irrationality" is a very thought-provoking book written by a believable and articulate professional. Ariely has a very personal style, incorporating many incidents from his own life and his struggles with debilitating burn injuries in his youth that altered the course of his life and certainly affected his point of view. I highlighted many passages in my Kindle and suspect that I will be picking up this book again from time to time to reread the highlights.
    4 people found this helpful
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  • Reviewed in the United States on February 23, 2018
    -This is an extension of the previous book, Predictable Irrationality, but this book goes one step further and gives guidance with many different areas where we make faulty decisions because of the inherent biases that we have.
    -The book is broken down into two sections, one that has more to do with business related issues and the other, with issues that are more of a personal nature. The basic format is to come up with an idea that is being questioned and then to either support that idea or negate it by some sort of experiment. For example, we consider it an automatic and not to be questioned idea that the more pay that you offer someone, the more they could be motivated. Motivation for pay, though, has a limit, and after reaching that limit, increased pay has a negative effect on performance. The rationale is that the person is so fixated on the prize, that the actual job being done suffers.
    -Some of the chapters cover ideas that may be related strongly, but the ideas have some sort of twist to them, so that they truly are different. Personal relationships is something that’s of interest to everyone, and new light is shed on certain facets of relationships and dating. For example, he delves into the on line dating world and give criticisms of why it isn’t set up as it should be. The human mind works in a certain way, and relationships are sparked by spontaneity. The dryness of the descriptions of each person in dating sites, inhibit the release of that spark which causes two people to relate to each other. But it’s the detail that he goes into, and recommendations for improvement, that makes this all the more interesting.
    -There is also a lot of personal experience that he reveals here, which adds to the interest, and he injects personal tales throughout the book.
    -All in all, there are very good and thought provoking ideas presented that can’t all be digested with just one reading. Very good for its presentation as well. Though the ideas it presents are not what you would expect, it’s an easy read, and you’ll find yourself going through the book very quickly while highlighting at least a third of what’s written.
    3 people found this helpful
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  • Joseph Myren
    5.0 out of 5 stars AWESOME
    Reviewed in Canada on November 12, 2023
    AWESOME
  • Sandeep Sengupta
    5.0 out of 5 stars Highly recommended.
    Reviewed in India on September 5, 2024
    A fantastic read into the mind.
  • Cliente Amazon
    5.0 out of 5 stars Ottimo
    Reviewed in Italy on March 31, 2019
    Interessante aggiunta alle considerazioni di prevedibilmente irrazionale , con scrittura più personale in merito alla vita dell'autore. Sicuramente da leggere
  • Manguart
    5.0 out of 5 stars Clasico Ariely
    Reviewed in Mexico on August 30, 2017
    Un libro muy parecido al anterior (me ha gustado más) después de leerlo sin problema uno puede aplicar estos descubrimientos a su entorno (aunque debo decir que es más fácil encontrarlos en otras personas que aplicarlos en uno mismo).
  • Cliente Amazon
    5.0 out of 5 stars Genial
    Reviewed in Spain on July 9, 2018
    De Dan Arieli no tengo más que buenas palabras. No había leído nunca nada igual. Alucinante, interesante, e incluso muy práctico para tu vida. Además su forma de escribir es tan amena que no te cansa. Merece la pena