Over the last two decades globalisation has accelerated international migration flows
particularly of skilled labour. Yet increasing migration by skilled workers from developing
countries (brain drain) has raised serious concerns internationally about the adverse
development impact on their countries of origin. This book however highlights the positive
aspects of skilled labour migration as scientific diasporas are playing a growing role in the
transfer of technology skills and knowledge (brain gain) to their home countries. This is a
very significant development in a globalised world where science technology and knowledge can
trigger economic and social transformations. The book presents solid empirical evidence of the
contributions scientific diasporas make to their countries of origin based on primary surveys
of skilled migrants from Colombia India and South Africa employed in Switzerland a major
destination country. The findings lead to a better understanding of the motives for migration
the profile of the scientific diaspora communities in Switzerland and the varied ways in which
they help their home countries. The book makes a significant contribution to the international
policy debate and dialogue on migration and development. In particular it shows how to
leverage the potential of scientific diasporas as agents of home country development by
identifying good practices and offering specific recommendations for the countries of origin
and of destination.
