Brigida Garcia is Professor at the Centre for Demographic and Urban Studies of El Colegio de Mexico, Mexico City. She has published many works on labour markets, the family and gender, and from 1995-99 served as co-chair of the Gender and Population Committee of the International Union for the Scientific Study of Population (IUSSP). Richard Anker works for the International Labour Office, Geneva, Switzerland. Antonella Pinnelli is Professor of Social Demography at the Department of Demographic Sciences, University La Sapienza, Rome.