For 17 per cent of countries in Africa, the most recent data available from censuses referred to years prior to 2005. Only four in ten countries in Africa can provide data on the age of international migrants. ...

High-quality data are essential for designing effective public policies, but also depend on the statistical capacities of national statistical offices (NSOs). José Antonio Mejía, Lead Specialist in Modernization o...

(This is Part 2 of a blog on household and specialized surveys for collecting migration data. Part 1, which focuses on household surveys, is available here.)

For most countries in the world, the most common existing data sources to collect data on international migration are population censuses and other traditional sources such as administrative records.  Dr. Ric...