I studied economics at the University of Konstanz in Germany, the State University of New York in Binghamton, and at Princeton University, where I received my Ph.D. in 1992. From 1991 to 1993, I worked as a staff economist at the Center for European Economic Research (ZEW) in Mannheim, Germany, before joining the Economics Department at MIT. Since 2000, I have been in the Economics Department at the LSE, where I am currently a Professor, and an associate in the CEP. I am also a previous editor of the European Economic Review and the Economic Journal. My research has focused on a variety of labour market related topics. I have studied education policies ranging from the returns to compulsory schooling and apprenticeship training, the impact of term length on student achievement, and classroom peer effects. In work on the formation and financing of human capital accumulation I have tried to understand the different ways in which vocational training is financed in different countries like Germany (with firm based vocational training) and in the U.S. (where a lot of such training takes place in schools). I have also done work on understanding changes in the wage structure, retirement, migration, the transition in the east German labor market, and household savings. I am currently also interested in applied econometrics and have written two book with Josh Angrist "Mostly Harmless Econometrics" and "Mastering Metrics".
Current areas of research include:
- I am working on occupational convergence between men and women (with Grace Lordan) and on the meta-analysis of class size effects (with Andres Barrios Fernandez).