Why do some societies evolve and adapt while others remain stagnant? What creates divisiveness and exclusion, and what leads to community cohesion and social progress? This book discusses the psychology of social system change and resistance to change, offering readers a deep exploration of the psychological dynamics that shape societal transformations. Readers explore psychological perspectives on intergroup relations and group processes, alongside interdisciplinary perspectives from environmental science, history, political science, and sociology, to question and challenge conventional thinking. This readable, entertaining book contains clear definitions, lucid explanations, and key learnings in each chapter that highlight the take-home points and implications, so that readers can apply these insights to their real-world challenges. Whether you're a student, scholar, community member, or leader, this book provides important knowledge for all who are interested in understanding and influencing the dynamics of social change.

‘In this deeply thought-provoking book, Winnifred Louis and her colleagues bring together a diversity perspectives on intergroup relations – from the psychology of individuals and groups to the nature of systemic change and ecological impacts – to create a brilliant transdisciplinary synthesis that is greater than the sum of its parts. A rare feat in the social sciences.'

Harvey Whitehouse - University of Oxford

‘This fascinating book covers and significantly expands social psychology's understanding of intergroup relations and system change. It does so through a timely and much-needed focus on conceptualizing not only how individuals are involved in intergroup relations, but also in the broader social system. I particularly found the second part of the book, where societies are portrayed as social ecosystems, to be a real eye-opener.'

Martijn van Zomeren - Professor of Psychology, University of Groningen and author of From Self to Social Relationships

‘The Psychology of System Change by Winnifred Louis is an engaging and insightful read, that offers a refreshing and optimistic perspective on system change, and provides a new way to think about the ‘figures' of change that often dominate legal and law reform thinking. The book's thoughtful structure enhances readability and accessibility, particularly for students and researchers from different disciplines. From the perspective of a law academic, this book prompts a re-evaluation of positivist-legal and liberal perspectives, and Louis encourages readers to consider the evolution of social groups over time, the nature of advantage and disadvantage in various social contexts, and the true meaning of engaging in ‘social action' that transcends, yet can also include, the relationship between the citizen and the state.'

Sarah Moulds - Professor of Law, University of South Australia

‘Professor Winnifred Louis and her colleagues have written a book that speaks to the heart of who we are as humans within the groups in which we live and interact. The writing in this book is clear, articulate, and accessible as the reader is introduced to both classic and new approaches to understanding and navigating intergroup relations and systems change.  In a world fraught with intergroup conflict and evolving landscapes, the evidence-based knowledge and wisdom shared in The Psychology of System Change: A New Psychology of Intergroup Relations will be a gift to all readers who have the good fortune to open its pages.'

David Boninger - Professor of Psychology, Glendale Community College