A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. Identifying causal relationships from observational data is not easy. Still, ...
The Review of Economic Studies, Vol. 68, No. 3 (Jul., 2001), pp. 543-572 (30 pages) This paper considers the problem of identification and estimation in panel data sample selection models with a ...
Panel data allow correction for measurement error without assuming a known measurement error covariance matrix or using additional validation/replication data to ...
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