"Swaziland has an unusually rich migration history. Swazi men and women have been migrating across colonial and international borders for decades for a multiplicity of reasons. Within the country, post-independence economic development was accompanied by rapid urbanization. As in many countries of the region, the monitoring of these processes through the ongoing collection of migration and immigration statistics is a challenging task. In this respect, the research community can play a vital role in supplementing official and census data collection with sound and representative inter-censual surveys of citizens and noncitizens, migrants and non-migrants."