Marianne E. Page and Gary Solon, "Correlations between Sisters and
Neighboring Girls in Their Subsequent Income as Adults", Journal of Applied
Econometrics, Vol. 18, No. 5, 2003, pp. 545-562.

Confidentiality restrictions prohibited the authors from sharing, or even
retaining, the data used in this study.  Researchers seeking access to
similar data from the Panel Study of Income Dynamics should contact the
Panel Study staff at the University of Michigan's Institute for Social
Research.  Various ways of contacting the Panel Study staff are listed at 

   www.isr.umich.edu/src/psid/contact_us.html

In hopes of enabling replication or other related research, the published
paper provides extremely detailed information on sample selection criteria,
variable definitions, and estimation methods.  The sample selection
information and the criteria for defining neighbors are spelled out in
Section 2.B of the paper.  The construction of the income variable and the
formulas for estimating its variance, sister covariance, and neighbor
covariance are described in Section 2.C.  The methods for standard error
estimation are in Section 2.D and the Appendix.  Regression methods for
partialing out some of the sources of the neighbor covariance are explained
in detail in Section 3.

Questions may be directed to mepage@ucdavis.edu or gsolon@umich.edu.