As highlighted in the literature for Asia, there are cases of internal migration leading to international migration, but there are also cases of equally important international movements from rural areas without prior internal migration.4 Migrants may also transit through countries before reaching their final destination country. While international migration flows are relatively well documented, data on migratory movements to and from rural areas - both within and between countries - are much more difficult to come by. Definitions for statistical and other purposes differ widely from country to country, making cross-country comparisons problematic."