This book takes a look at the influence of social comparison on individuals, groups, and society, using real-life examples and psychological theories. It goes beyond an individual perspective and comprehensively explores the macro impact of social comparison on groups and society, and it covers a wide range of topics. From an individual perspective, this book elaborates on how social comparison affects self-awareness and decision-making. From a group perspective, it delves into how comparison affects interpersonal relationships and group conflicts. Finally, from a societal perspective, it explores how it impacts altruistic behavior and happiness among the general public. The readers of this book include government officials, professional scholars, and general readers interested in social comparison. The main highlights of this book include the following: first, it stands out for its comprehensive presentation of rich research findings on social comparison. Second, it is written in clear and reader-friendly language that is closely related to real-life situations. Third, by providing concrete suggestions for utilizing social comparison, this book offers insights on how to improve society and enhance personal well-being.

Jingyi LU, professor of the School of Psychology and Cognitive Science, East China Normal University. She obtained a Ph.D. from the Department of Psychology, Peking University. Her research focuses on judgment and decision-making. She has been rewarded the Outstanding Achievement Award of Philosophy and Social Sciences in Shanghai. She serves as the deputy director of the Professional Committee of Decision Psychology of the Chinese Psychological Society, member of the Professional Committee of Psychology and Social Governance of the Chinese Psychological Society, and editorial board member of Acta Psychologica Sinica (China) and Journal of Psychological Science (China).

Tian QIU, assistant professor of Research Institute of Social Development, Southwestern University of Finance and Economics. He obtained a Ph.D. from the School of Psychology and Cognitive Science, East China Normal University. He is interested in judgment and decision-making and irrational decision. He has been awarded the National Scholarship for Outstanding Graduates and Outstanding Graduate at East China Normal University.