Educational Mismatch Among Ph.D.s: Determinants and Consequences
---- Acknowledgements -----
The authors thank the National Science Foundation (NSF) and William Rayburn for helping to secure access to the restricted data and Richard Freeman, Dan Hamermesh, Shulamit Kahn, Kostas Mavromaras and the participants of seminars at the University of Aberdeen, Scotland, Lancaster University, England, the University of Wisconsin-Milwaukee, the National Bureau of Economic Research, and the NSF for helpful comments. The use of NSF data does not imply NSF endorsement of the research methods or conclusions contained in this paper. The views expressed herein are those of the author(s) and do not necessarily reflect the views of the National Bureau of Economic Research.