Quotes & Sayings About Making Irrational Decisions

Thinking, Fast and Slow, mentioned above, and Dan Ariely's Predictably Irrational. One of the handful of books that provides advice on making decisions better is Nudge by Richard Thaler and Cass Sunstein, which was written for "choice architects" in business and government who construct decision systems such as retirement plans or organ-donation policies. It has been used to improve government policies in the United States, Great Britain, and other countries. — Chip Heath

We should not conclude from this that everything depends on waves of irrational psychology. On the contrary, the state of long-term expectation is often steady, and, even when it is not, the other factors exert their compensating effects. We are merely reminding ourselves that human decisions affecting the future, whether personal or political or economic, cannot depend on strict mathematical expectation, since the basis for making such calculations does not exist; and that it is our innate urge to activity which makes the wheels go round, our rational selves choosing between the alternatives as best we are able, calculating where we can, but often falling back for our motive on whim or sentiment or chance. — John Maynard Keynes

But, as the results presented in this book (and others) show, we are all far less rational in our decision making than standard economic theory assumes. Our irrational behaviors are neither random nor senseless-they are systematic and predictable. We all make the same types of mistakes over and over, because of the basic wiring of our brains. So wouldn't it make sense to modify standard economics and move away from naive psychology, which often fails the tests of reason, introspection, and-most important-empirical scrutiny?

Wouldn't economics make a lot more sense if it were based on how people actually behave, instead of how they should behave? As I said in the Introduction, that simple idea is the basis of behavioral economics, an emerging field focused on the (quite intrusive) idea that people do not always behave rationally and that they often make mistakes in their decisions. — Dan Ariely