Book excerpt: Elgar Advanced Introductions are stimulating and thoughtful introductions to major fields in the social sciences, business and law, expertly written by the world'Äôs leading scholars. Designed to be accessible yet rigorous, they offer concise and lucid surveys of the substantive and policy issues associated with discrete subject areas. New institutional economics (NIE) is a powerful tool for understanding real world phenomena. This Advanced Introduction explores NIE'Äôs answers to fundamental questions about the organization, growth and development of economies, such as why are some countries rich and others poor? Why are activities organized as firms or markets or through alternative organizational solutions? When are shared resources overexploited? Key Features: Elucidates the essence of NIE'Äôs main branches, focusing on the governance of transactions and organizations (identified with Oliver Williamson), the fundamental institutional environment (Douglass North), and the role of communal institutions and collective action (Elinor Ostrom) Explores how NIE has transformed perspectives on collective action, state and legal institutions, public policy and regulation, and economic growth Extensive references to allow interested readers to dive deeper into specific topics Authored by scholars associated early on with leading figures in NIE and the development of NIE'Äôs research agenda. This Advanced Introduction is an ideal read for advanced students of economics, political science, management, law and sociology interested in learning about new institutional economics. Policy makers, especially those responsible for business and utility regulation and development policy and assistance, will also benefit from this concise yet detailed book.