excellent book about Behavioral economics
Predictably Irrational, Revised and Expanded Edition: The Hidden Forces That Shape Our Decisions: Ariely, Dr. Dan: 9780061353246: Amazon.com: Books
Predictably Irrational - Wikipedia
Predictably Irrational: The Hidden Forces That Shape Our Decisions is a 2008 book by Dan Ariely, in which he challenges readers' assumptions about making decisions based on rational thought. Ariely explains, "My goal, by the end of this book, is to help you fundamentally rethink what makes you and the people around you tick. I hope to lead you there by presenting a wide range of scientific experiments, findings, and anecdotes that are in many cases quite amusing. Once you see how systematic certain mistakes are—how we repeat them again and again—I think you will begin to learn how to avoid some of them".
author's web site:
Dan Ariely
book summaries:
Predictably Irrational by Dan Ariely: Summary and Notes - Dan Silvestre
"Predictably Irrational by Dan Ariely explores the hidden forces that shape our decisions. Ariely proves that humans are not only irrational but predictably irrational. In other words: our irrationality happens again and again. A great book to improve your decision making so you can change the way you live for the better."
- The Truth About Relativity

(black circles are same size (?), they just look different relative to surrounding)
We are always looking at the things around us in relation to others.
Predictably Irrational - The Hidden Forces that Shape Our Decisions [Speed Summary] - Brand Genetics
related book:
Thinking, Fast and Slow - Wikipedia
In 2002, psychologist Daniel Kahneman and economist Vernon L. Smith were awarded the Nobel Memorial Prize in Economic Sciences. Kahneman was awarded the prize "for having integrated insights from psychological research into economic science, especially concerning human judgment and decision-making under uncertainty"