Costas Meghir is the Douglas A. Warner III Professor of Economics at Yale University. He obtained his Ph.D. from Manchester University. He is a Member of the American Academy of Arts and Sciences, Fellow of the Econometric Society, Fellow of the British Academy, and Fellow of the Society for Labor Economics. He was awarded the Ragnar Frisch medal by the Econometric Society in 2000 and the Bodosakis Foundation prize in 1997. He has been co-editor of Econometrica and joint managing editor of the Economic Journal. His current research is focused on informal labor markets, labor supply and welfare programs, the economics of the family, including marriage markets and intrahousehold allocation of resources, and on human capital and early childhood development (ECD). He is involved in designing and testing ECD interventions by RCT in both developing countries and the US, aimed at improving child outcomes and mitigating the intergenerational transmission of poverty.