'The interaction between factor mobility and trade has been a long standing concern to several of the best trade theorists and also to policy makers. Despite the huge scholarly literature that has grown up on this subject in the last four decades, these distinguished authors manage to bring fresh theoretical insights to the subject. It is a first-rate work.' Jagdish N. Bhagwati, Columbia University, New York 'This excellent book is a welcome addition to international trade books, where factor mobility and trade in factors are usually given a cursory treatment. In fact, after an introductory chapter in which the orthodox theory is summarized, the subsequent chapters treat a wealth of topics related to factor mobility and trade in factors including situations of unemployment and legal and illegal migration issues.' Giancarlo Gandolfo, University of Rome La Sapienza

• and Overview.- 1 A Two Sector General Equilibrium Model of an Economy.- 2 A Simple Treatment of the Generalized Harris-Todaro Model.- 3 Policy Making in the Generalized Harris-Todaro Model.- 4 Out-Migration, Unemployment, Income and Structural Change: A Trade Theoretic Analysis.- 5 Capital Mobility, Tariff, Unemployment and the Real Exchange Rate.- 6 Free Trade Zones, Tariffs and the Real Exchange Rate.- 7 Factor Mobility and Spill-Over Effects in a Model of Multilateral Trade.- 8 Illegal Migration, Unemployment and Welfare.- 9 Illegal Migration, Border Enforcement and Growth.- References.- Author Index.

'The interaction between factor mobility and trade has been a long standing concern to several of the best trade theorists and also to policy makers. Despite the huge scholarly literature that has grown up on this subject in the last four decades, these distinguished authors manage to bring fresh theoretical insights to the subject. It is a first-rate work.' Jagdish N. Bhagwati, Columbia University, New York 'This excellent book is a welcome addition to international trade books, where factor mobility and trade in factors are usually given a cursory treatment. In fact, after an introductory chapter in which the orthodox theory is summarized, the subsequent chapters treat a wealth of topics related to factor mobility and trade in factors including situations of unemployment and legal and illegal migration issues.' Giancarlo Gandolfo, University of Rome La Sapienza

• and Overview.- 1 A Two Sector General Equilibrium Model of an Economy.- 2 A Simple Treatment of the Generalized Harris-Todaro Model.- 3 Policy Making in the Generalized Harris-Todaro Model.- 4 Out-Migration, Unemployment, Income and Structural Change: A Trade Theoretic Analysis.- 5 Capital Mobility, Tariff, Unemployment and the Real Exchange Rate.- 6 Free Trade Zones, Tariffs and the Real Exchange Rate.- 7 Factor Mobility and Spill-Over Effects in a Model of Multilateral Trade.- 8 Illegal Migration, Unemployment and Welfare.- 9 Illegal Migration, Border Enforcement and Growth.- References.- Author Index.