The majority of migration in the world is from the countryside to towns and cities, with the largest migration currently occurring in the South. People leave rural areas to seek employment in urban areas, but they often experience considerable difficulties in their new environment.

Many people also emigrate to other countries to seek a better life, although this may not always be for economic reasons. It could be to escape war or persecution, or to join family members. This movement can also present problems, from language differences through to racism.