The papers in this series are presented with the hope that their content may be of interest to the general research community and encourage discussion. The views in these papers are those of the authors, and do not necessarily represent those of the Census Bureau.

Inquiries may be addressed to the author(s) or to the CSM Report Series Coordinator, Center for Survey Methodology, Bureau of the Census, Washington DC, 20233 (or by email at csm.report.series@census.gov).