Under attrition, usually panel data are trimmed to include only the individuals with complete records; then, to allow for a unit-specific effect related to regressors, LSE is applied to the first-differenced model. This paper provides conditions for the LSE to be valid.
Copyright 2008 Elsevier B.V., All rights reserved.
- Panel data
ASJC Scopus subject areas
- Economics and Econometrics