Includes bibliographical references and index.

Introduction : the migration without borders scenario / Antoine Pâecoud and Paul de Guchteneire -- The economics and politics of the free movement of people / Nigel Harris -- The frontiers of mobility / Catherine Wihtol de Wenden -- The ethics, economics and governance of free movement / Mehmet Ugur -- Managing migration : towards the missing regime? / Bimal Ghosh -- Open borders and the welfare state / Han Entzinger -- Europe without borders : rhetoric, reality or utopia? / Jan Kunz and Mari Leinonen -- Creating a borderless West Africa : constraints and prospects for intra-regional migration / Aderanti Adepoju -- Histories, realities and negotiating free movement in southern Africa / Sally Peberdy and Jonathan Crush -- Migration without borders : a long way to go in the Asian region / Graziano Battistella -- A world without borders? : Mexican immigration, new boundaries and transnationalism in the United States / Alejandro I. Canales and Israel Montiel Armas -- The free circulation of skilled migrants in North America / Rafael Alarcâon -- Migration policies and socioeconomic boundaries in the South American cone / Alicia Maguid.