A significant part of the economic theory of migration assumes that migration is a process compensating for regional differences in the level of development, thus acting as a regulator of labour supply and demand (Fei & Ranis, 1961;Janicki, 2007;Todaro, 1976). Although migration does not reduce disparities in the level of regional development in absolute terms, it may to some extent mitigate the consequences of uneven development.Particularly beneficial in relation to economic development is return migration and the associated social, human and/or economic capital acquired abroad. However, large-scale migrant return is rare. An alternative may be to