In a world of 6 billion inhabitants, international migration seems insignificant as it comes to represent
about three per cent of the world. Most migration, in fact is internal—rural to rural, rural to urban—and
international migration in many cases follows a sequence of stages, from rural to urban, then to the
international sphere. However, international migration takes on greater relevance because of the
significant volume of remittances worldwide. To many, remittances have become a stable source of
finances (Ratha, 2003, Sørensen, 2002).