Aderanti Adepoju is Professor of Demography and Social Statistics, University of Ife, and Research Professor at the University of Lagos, Nigeria. An economist-demographer, he spent several years lecturing and researching issues on migration at the Universities of Ife and Lagos, and in capacity building of African government officials while working for the ILO (Addis Ababa), UN (Swaziland) and UNFPA (Dakar). A former President of Union for African Population Studies; member, World Economic Forum’s Global Agenda Council on Migration; and The Hague Process on Refugee and Migration Policy, he also serves on the Editorial Advisory Board of key international migration journals. He was the Leader of the IOM/UNFPA Research Team on Emigration Dynamics in sub-Saharan Africa project during 1992-97. He has since focused on evidence-based policy research and training of media practitioners, young researchers and 'technical' officials in migration data collection/analysis for policy formulation. His numerous books on international migration in Africa include: Migration within and from Africa: Shared policy challenges for Africa and Europe, 2016; The Diaspora Decade: Some perspectives on African Migration-Related Issues, 2014; International migration within, to and from Africa in a globalised world, 2010; Migration in sub-Saharan Africa, 2007. He is founder and Coordinator of the Network of Migration Research on Africa, and CEO, Human Resources Development Centre in Lagos.

Marie-Hélène Amiel is Head of the Department of Statistics, Studies and Documentation at the Directorate general for foreigners in France (Ministry of Interior) since January 2013. Statistician-economist by training, she held numerous positions in the economic administration and the French National Institute for Statistics and Economic Studies (INSEE), of which she is an Inspector General. She acquired experience in the field of the use of administrative data and in that of household surveys. She was often involved in statistical harmonization especially at EU level. In the field of the statistics of migration in France, she led numerous evolutions which allowed to improve data quality. She developed close links with academia in order to promote analysis and prospective of migratory phenomena. Since 2015, she chairs the Working Party on Migration at OECD. She is a member of the International Statistical Institute (ISI) since 1997. 

Maruja M.B. Asis is Director of Research and Publications at the Scalabrini Migration Center and Co-Editor of the Asian and Pacific Migration Journal. She is a sociologist who has worked on various aspects of migration and social change in Asia. Her engagement with migration stakeholders in the region have provided her with an appreciation of data issues in migration research, policy and advocacy. She coordinated a migration data project involving several Asian countries some years back. Her current research focuses on migration and development, policies and programs on children of migrant and multicultural families in Asia, and the impact of parental migration on the health and well-being of children in the Philippines. 

Massimo Livi Bacci is Emeritus Professor of Demography, University of Florence. He has been President of IUSSP (International Union for the Scientific Study of Population) and Senator of the Italian Republic (2006-13). He is a member of the National Lincei Academy, of the American Philosophical Society and of the Academy of Japan. Among his books, “The Population of Europe. A History” (1999); “Conquest. The destruction of the American Indios” (2008), “A Short History of Migration”(2012), “A Concise History of World Population”(2016) “The Shrinking Planet” (2017). He is the founder and editor of the website Neodemos for the discussion and dissemination of population and social issues. 

Douglas S. Massey is the Henry G. Bryant Professor of Sociology and Public Affairs at Princeton University, where he serves as Director of the Office of Population Research. He also co-directs the Mexican Migration Project and the Latin American Migration Project, which generate public access data on documented and undocumented migration from Mexico to the United States and from other Latin American nations to the U.S. and other countries, as well as the New Immigrant Survey, a longitudinal survey of the 2003 cohort of legal immigrants to the United States. He is Past-President of the Population Association of America, the American Sociological Association, and the American Academy of Political and Social Science and an elected member of the National Academy of Sciences, the American Academy of Arts and Sciences, and the American Philosophical Association.  

Ann Singleton is a Senior Research Fellow in the School for Policy Studies, University of Bristol (UK). Her work focuses on the use of international migration data in the development of policy and on capacity building to strengthen the evidence base for policy, research and public debate on migration. She has published and spoken widely in the areas of asylum and international migration policy and statistics in the UK and the European Union. Ann was responsible, between 2002-2004, in the European Commission’s Directorate-General for Justice and Home Affairs, for policy on migration and asylum statistics. She is the academic lead of the Worldwide Universities Network (WUN) ‘Migration, Development and Global Transformations project. Together with Dr. Frank Laczko, Director of IOM’s GMDAC, she leads the WUN collaboration with IOM in the field of migration data and analysis for policy. She has advised the European Commission, the European Parliament, the Council of Ministers and EU Presidencies and has collaborated with many NGOs and international organisations. She works closely with UNDESA and IOM and recently edited the Global Migration Group’s Handbook for improving the Production and Use of Migration Data for Development (GMG/KNOMAD, 2017, forthcoming). She is Senior Advisor to the International Organization for Migration’s Global Migration Data Analysis Centre (IOM’s GMDAC) in Berlin and a member of the Advisory Board of the Migration Observatory at the University of Oxford.