Student's migration stands at the heart of the extension of migratory flows. Mainly analyzed in geopolitical terms (brain drain, economic relations ...), this issue responds primarily to individual choices and paths related to social and professional expectations. From this observation, this research deals with the pursuit of post-graduate studies abroad as a strategy for social mobility. The aim is to explore the experiences of young adults during the studies away from their country in order to understand the decisions at the end of this experience. Finally, the interest relates to the internal transformation of the migrants accentuated by the physical and social distance vis-à-vis the society of origin. The study population is students from Chile or Colombia enrolled in graduate programmes, master 2 or PhD, not having the nationality of the country of residence. They live and continue their studies in the cities of Paris, New York or Boston. Using a comprehensive and biographical approach, this research is mainly based on 63 in-depth interviews conducted between 2008 and 2011.
