In recent years, the economics of emotions (EoE) field, which aims to create models of the human mind, has grown quickly. EoE models work well with simulation theory (ST), which is one of the main theories of mind. EoE models show how people's behavior and emotions change based on their knowledge and perception of others. It is hoped that by developing this model, it will be possible to quantitatively analyze not only the mental states of real others, but also the (...) subtleties of the minds of characters in novels in the future. Until now, the decision-making or the factual-reasoning mechanisms have been a black box in ST. This study analyzes how EoE models add to the understanding of ST. (shrink)

Current research on morality is divided into rationalist and intuitionist theories. This study shows that when individuals make rational choices, they are inevitably guided by the moral foundation of intuitionism. Especially to pursue self-interest, individuals must agree with others in society. They must keep their opinions constant to agree with others. To maintain a constant opinion, the individual assigns an opinion that can improve the utility of the other person and place both of them in the same situation. The actions (...) taken by an individual must be altruistic to enhance the utility of the other person . The individual’s opinion is subsequently guided by the golden rule of morality, “Treat others as you would like to be treated,” which facilitates moral foundations. (shrink)

In recent years, research on modeling the human mind has been progressing rapidly in Japan, which has provided a framework for programming the mind in the current development of artificial intelligence. Despite the skepticism about this subject, it is possible to model the mind according to the same pattern as long as people feel the same way when placed in the same situations and if they can understand the feelings of others when placed in specific situations. In addition, as people (...) tend to understand other’s emotions by applying some model of the mind, the existence of such a model for understanding people’s emotions is not surprising. Therefore, this book introduces the main ideas of the model of the mind, indicating that the human mind is inevitably equipped with various emotions. In other words, this model yields several qualitatively different impulses defined as human emotions. Currently, the field of research that analyzes this model of the mind is called the “economics of emotions,” which is expected to become a unified theory applied across the humanities and social sciences. There is no human mind left that cannot be modeled by the economics of emotions as this concept focuses on the human mind as a whole. In this regard, this book (published in 2022 in Japan) touches on the key points discussed in the economics of emotions. While this book aims to present an overall picture to readers intending to study the economics of emotions, it will also help them organize the overall contents, whose English translation will be published in 2024. (shrink)