Book excerpt: This book presents economic policies to combat the challenges posed by financial crisis, the COVID-19 pandemic, and the climate crisis. How the role of the markets, the state, and social cohesion have come into question is explored, alongside broader issues, such as inequality. Particular attention is given to policies relating to the funding and financing of investment to confront the climate emergency, enhancing productivity and technical innovation, the significance of the commons in the context of the state, and macroeconomic policies to underpin sustainability. This book aims to present a framework for a sustainable future, with policy suggestions that promote both environmental and economic sustainability. It will be relevant to students and researchers interested in the political economy and sustainable development.