Tim Hatton is Professor of Economics at the University of Essex and at the Australian National University. His current research interests include the causes and effects of international migration, and immigration and asylum policy. He has published extensively on the economic history of labour markets, including the history of international migration. His most recent books include Seeking Asylum: Trends and Policies in the OECD(CEPR, 2011) and (with Jeffrey G. Williamson) Global Migration and the World Economy: Two Centuries of Policy and Performance (MIT Press, 2005).  He is a Fellow of the IZA and of CEPR.