From one of the most famous books that came out in 2008, Predictably Irrational by Dan Ariely. Worawat did all the hard work of preparing information from the book to produce this episode. The book focused on Behavioral Economics. Dan became very famous from the book that he was invited to talk at TED talk. The book were full of interesting experiments so we invited Chalermporn (Ning), Surachai (Chai) and Sutin (Ood) to comment on these experiments.