Professor Melinda Mills, Professor of Demography and Population Health and Director of the Leverhulme Centre for Demographic Science at the University of Oxford, discusses the data sources and methods used to understand fertility aspirations and the barriers faced by women and men in achieving them. She emphasises the importance of data that is timely, fine-grained, accurate and drawn from multiple sources to inform effective policymaking. | 8th Global Symposium on Population Ageing and Low Fertility