This is a two-book set where you can learn about the mechanisms of social and human decision-making and cooperation from the perspectives of sociology and psychology (behavioral economics). Recommended for introductory classes, reports, research, and as input for business decision-making and organizational understanding. ■ Set Contents ・ Toshio Yamagishi, "Social Dilemmas (From 'Environmental Destruction' to Bullying)" ・ Norio Tomono, "Behavioral Economics: The Economy is Driven by 'Emotions'" ■ Condition As these are used books, there are signs of use such as scuffs and small scratches on the covers and obi (photographs provided for confirmation). Main text: No issues with reading. *Writing/underlining: None (please forgive any oversights)* ■ Shipping Will be shipped anonymously with waterproofing. *Sold as a set, no individual sales available.*