NBER Retirement Research Center Paper No. NB 04-04
Issued in December 2004
---- Acknowledgements -----
This research was supported by the U.S. Social Security Administration through grant #10-P98363-1 to the National Bureau of Economic Research as part of the SSA Retirement Research Consortium. The opinions and conclusions expressed are solely those of the author(s) and do not represent the opinions or policy of SSA, any agency of the Federal Government, or the NBER. We are grateful to the Social Security Administration for this financial support. We thank Vivek Choudhary, Soonho Lee, and Yoon Sok Lee for excellent research assistance.