Longitudinal Employer - Household Dynamics
Technical paper No. TP-2002-02
Changing the Boundaries of the Firm: Changes in the Clustering of
Human Capital
(Presented at the AEA 2002)
Date
: January 2002
Prepared by
: John M. Abowd, Paul Lengermann, and Kevin L.
McKinney
Contact
: Ronald Prevost (Ronald.C.Prevost@census.gov)
U.S. Census Bureau, LEHD Program
FB 2138-3
4700 Silver Hill Rd.
Suitland, MD 20233 USA
This document reports the results of research and analysis undertaken by the U.S. Census Bureau staff. It has
undergone a Census Bureau review more limited in scope than that given to official Census Bureau publications,
and is released to inform interested parties of ongoing research and to encourage discussion of work in progress.
This research is a part of the U.S. Census Bureau’s Longitudinal Employer-Household Dynamics Program (LEHD),
which is partially supported by the National Science Foundation Grant SES-9978093 to Cornell University (Cornell
Institute for Social and Economic Research), the National Institute on Aging, and the Alfred P. Sloan Foundation.
The views expressed herein are attributable only to the author(s) and do not represent the views of the U.S. Census
Bureau, its program sponsors or data providers. Some or all of the data used in this paper are confidential data from
the LEHD Program. The U.S. Census Bureau is preparing to support external researchers’ use of these data; please
contact Ronald Prevost (Ronald.C.Prevost@census.gov), U.S. Census Bureau, LEHD Project, FB 2138-3, 4700 Silver
Hill Rd., Suitland, MD 20233, USA.
1
Changing the Boundaries of
the Firm: Changes in the
Clustering of Human Capital
John M. Abowd
Paul Lengermann
Kevin L. McKinney
Acknowledgements
The authors acknowledge the substantial contributions of Karen Conneely, John
Haltiwanger, Julia Lane, Nichole Nestoriak, John Messier, Ron Prevost, Kristin
Sandusky, Bryce Stephens, Martha Stinson, and Lars Vilhuber.
This research is a part of the U.S. Census Bureau's Longitudinal Employer-
Household Dynamics Prog