In 2009, Gerard J. van den Berg won the Alexander von Humboldt Professorship prize for research excellence. Van den Berg was the first economist and social scientist to receive this prize. Before this, he was Top Professor at the Dept. of Economics at VU University Amsterdam. He is also affiliated to IFAU (Uppsala) since 1999. In addition, he is Program Director at IZA (Bonn), leading the field of Labor Market Policy Evaluation. Previously he worked at Northwestern University, Princeton University, and Stockholm School of Economics.