This book explores the transformative potential of integrating behavioural economics and computational intelligence to address today's complex sustainability challenges. Featuring contributions from global experts across disciplines--including economics, cognitive science, data analytics, and environmental studies--it presents innovative frameworks and AI-driven strategies for informed, ethical, and sustainable decision-making. Topics include behavioural modelling, neuroeconomics, policy simulation, and intelligent governance. Bridging theory and practice, the book is ideal for researchers, policymakers, and practitioners seeking data-informed solutions that centre both human behaviour and technological advancement. It is a timely resource for building equitable, efficient, and future-ready systems in a rapidly evolving world.