Regional development banks (RDB) have become increasingly important in the world economy, but have also been relatively under-researched to date. This timely volume addresses this lack of attention by providing a comprehensive, comparative, and empirically informed analysis of their origins, evolution, and contemporary role in the world economy through to the second decade of the twenty-first century. In Regional Development Banks in the World Economy, the editors provide an analytical framework that includes a revised categorisation of RDB by geographic operation and function. Part one offers detailed analyses of the origins, evolution, and contemporary role of the major RDB, including the Inter-American Development Bank, the African Development Bank, the Asian Development Bank, the European Investment Bank, the Central American Bank, the Andean Development Corporation, the European Bank for Reconstruction and Development, and the Asian Infrastructure Investment Bank. Part two offers comparative analyses of key topics on RDB, examining their initial design and their changing business models, their shifting role in promoting policies supported by the United States as hegemon and the private sector. The volume ends with a critical reflection on the role played by RDB to date and a strong defence of the need for these banks in an increasingly complex world economy.