Article Information
vol. 299 no. 5609 1021
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© 2003 American Association for the Advancement of Science
Author Information
- J. P. Walsh is in the Department of Sociology, University of Illinois at Chicago, Chicago, IL 60607-7140, USA, and the Research Center for Advanced Economic Engineering, University of Tokyo, Tokyo, Japan.
- A. Arora is at the Heinz School of Policy and Management, Carnegie Mellon University, Pittsburgh, PA 15213-3890, USA.
- W. M. Cohen is at the Fuqua School of Business, Duke University, Durham, NC 27708, USA.
- ↵*To whom correspondence should be addressed. E-mail: jwalsh{at}uic.edu