Maxime Boutry is an independent scholar who received his PhD in social anthropology and ethnology at the École des Hautes Études en Sciences Sociales in Paris in 2007. Jacques Ivanoff is an anthropologist at the French National Center for Scientific Research Frédéric Bourdier is an anthropologist at the Institut de Recherche pour le Développement in Marseille. Olivier Ferrari is associate researcher at the Research Institute on Contemporary Southeast Asia in Bangkok and lecturer at the Lausanne University in Switzerland.

• 1 Introduction: from Padi States to Commercial States, 2 Populations on the Move in the Borderlands of Northeast Cambodia, 3 The Burmese 'Adaptive Colonization' of Southern Thailand, 4 The Interstices: A History of Migration and Ethnicity, 5 Borders and Cultural Creativity: the Case of the Chao Lay, the Sea Gypsies of Southern Thailand, 6. Bibliography, Index, About the authors

Maxime Boutry is an independent scholar who received his PhD in social anthropology and ethnology at the École des Hautes Études en Sciences Sociales in Paris in 2007. Jacques Ivanoff is an anthropologist at the French National Center for Scientific Research Frédéric Bourdier is an anthropologist at the Institut de Recherche pour le Développement in Marseille. Olivier Ferrari is associate researcher at the Research Institute on Contemporary Southeast Asia in Bangkok and lecturer at the Lausanne University in Switzerland.

• 1 Introduction: from Padi States to Commercial States, 2 Populations on the Move in the Borderlands of Northeast Cambodia, 3 The Burmese 'Adaptive Colonization' of Southern Thailand, 4 The Interstices: A History of Migration and Ethnicity, 5 Borders and Cultural Creativity: the Case of the Chao Lay, the Sea Gypsies of Southern Thailand, 6. Bibliography, Index, About the authors