Robert J. Sampson is Henry Ford II Professor of the Social Sciences at Harvard University and Director of the Social Sciences Program at the Radcliffe Institute for Advanced Study. He taught at the University of Chicago for twelve years before moving to Harvard in 2003. Sampson was elected to the National Academy of Sciences in 2008 and is a Fellow of the American Academy of Arts and Sciences and the American Philosophical Society. He was elected President of the American Society of Criminology for 2011-2012.
Salvador Navarro is a Professor of Economics and W. Glenn Campbell Fellow at the University of Western Ontario. He is also affiliated with the Institute for Research on Poverty and the Center for Demography and Ecology at Wisconsin. His research focuses on questions of identification in applied microeconomics problems.
Stephen Machin is Professor of Economics at University College London and Research Director of the Centre for Economic Performance at the London School of Economics. He is one of the Editors of the Economic Journal. Previously he has been visiting Professor at Harvard University (1993/4) and at the Massachusetts Institute of Technology (2001/2). He is an fellow of the British Academy, has been President of the European Association of Labour Economists, is a Fellow of the Society of Labor Economists, a member of the UK Low Pay Commission and of the recently set up Tuition Fees Commission.
Randi Hjalmarsson is currently Professor at the Göteborgs Universitet, Sweden, as well as a part-time Professor at the School of Economics and Finance at Queen Mary, University of London. She is also a Research Affiliate at the Centre for Economic Policy Research. She was previously an Assistant Professor at the University of Maryland, School of Public Policy. Her research focuses on empirical questions related to the economics of crime.
Jeffrey Grogger is the Irving Harris Professor in Urban Policy at the University of Chicago Harris School of Public Policy. His work spans a variety of topics, from crime to welfare reform to racial profiling. His current work focuses on health insurance in Mexico, unemployment insurance reform in Germany, and local public spending in the United States. Grogger received a PhD in economics from the University of California, San Diego.