Economics has the power to make the world a better, happier, and safer place, and this book explains how it achieves that. Our world is in chaos; the challenges of climate change, inequality, hunger, and pandemics threaten our lives and divide our society more than ever before. But economics can help. The science of economics provides the tools we need to fix the biggest contemporary problems, from raising children to healthcare, from housing to societal behaviors. Far from being a means to predict the stock market or achieve wealth, economics provides us with a lens through which to understand how it works best, design smart solutions, and create conditions for prosperity. With a healthy dose of skepticism and stories from the world of economics in everyday situations, Erik Angner explains the methods he and his fellow economists use to improve our lives and the society we live in. He shows us how economics represents a powerful force for good and alerts us to the possibility of a happier, more just, and sustainable world. "A new, optimistic voice offering useful rules that help us understand the world around us and make it a better place. Angner's writing is humane, thoughtful, and humorous. This book is as enjoyable to read as it is serious in motivating change." – Professor Klaus Schwab, Founder and Executive Chairman of the World Economic Forum. Erik Angner is Professor of Practical Philosophy at Stockholm University. He holds two PhDs, one in economics and one in the history and philosophy of science, both from the University of Pittsburgh. He has authored numerous books and journal articles on behavioral and experimental economics, the science and philosophy of happiness, and the history, philosophy, and methodology of contemporary economics. He lives in Stockholm with his wife and their three children.