Understanding the Role of Time-Varying Unobserved Ability Heterogeneity in Education Production
---- Acknowledgements -----
We would like to thank Richard Murnane, two anonymous reviewers and seminar participants at Queen's University, Simon Fraser University, 2008 CSWEP/CEMENT workshop, 2008 CEA Annual meetings and the AEA annual meetings session on Education for the Disadvantaged for helpful comments and suggestions. We are grateful to Alan Krueger for generously providing a subset of the data used in the study. Lehrer wishes to thank SSHRC for research support. We are responsible for all errors. The views expressed herein are those of the authors and do not necessarily reflect the views of the National Bureau of Economic Research.