Refugees can constitute a sizable proportion of a country’s population - in the 1990s, refugees made up 10 per cent of the national population of Malawi - and a persistent one -refugees have comprised around half of the population of some northern provinces of Pakistan for over 20 years (Marfleet, 2006). Of course, refugees do not migrate only to neighbouring countries, but may seek sanctuary in any country. However, most refugee flow is from countries in the South to countries in the South, with developing countries hosting four-fifths of the world’s refugees - arguably those with the least capacity, financially and institutionally, to manage such flows - and most refugees do move to their neighbouring country (UNHCR, 2011a).