BSc, Economics; MSc; 1973, PhD, Demography. Dean, Faculty of Business Administration, University of Lagos; Regional Adviser, Labour and Population Policy, ILO, UN Chief Technical Adviser, Government and University of Swaziland; UNFPA Coordinator, Population and Human Resources Development for Africa. Member: IUSSP; Hague Process on Refugee and Migration Policy; Population Association of Nigeria. Former President, Union of African Population Studies. Researcher and consultant on migration and regional integration in Africa for variety of development partners and governments. Author of many books and journal articles on internal and international migration in Africa.