For decades, people believe that our economic system is operated by statistics, followed by series of number and calculations. Economists gather price information, evaluate advantages and disadvantages, and find the best solution to outpace competitors. They believe people usually behave rationally. However, as the concept of behavioral psychology emerged in the economic world, economy has been viewed in a different perspective. Behavioral economists speculate that people are irrational reactors instead of rational actors. One of the supporters of this concept, Dan Ariely, the Professor of Psychology and Behavioral Economics at Duke University has put his twenty years of findings and research into his book- Predictably Irrational and attempts