Book excerpt: This is an open access title available under the terms of a CC BY-NC-ND 4.0 License. It is free to read, download and share on Elgaronline.com. This Research Handbook explores the complex interplay between competition law and sustainability, and also provides key insights into the role and limitations that tax, environmental laws, consumer laws, and social laws have in promoting sustainability. A distinguished array of international experts examine core principles of environmental and social sustainability, delve into the economic dynamics that shape this multidimensional relationship, and critically analyse how competition law and policy can both positively and negatively shape sustainability outcomes.