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Imputed welfare estimates in regression analysis

Chris Elbers (), Jean Lanjouw and Peter Lanjouw ()

No 3294, Policy Research Working Paper Series from The World Bank

Abstract: The authors discuss the use of imputed data in regression analysis, in particular the use of highly disaggregated welfare indicators (from so-called"poverty maps"). They show that such indicators can be used both as explanatory variables on the right-hand side and as the phenomenon to explain on the left-hand side. The authors try out practical ways of adjusting standard errors of the regression coefficients to reflect the error introduced by using imputed, rather than actual, welfare indicators. These are illustrated by regression experiments based on data from Ecuador. For regressions with imputed variables on the left-hand side, the authors argue that essentially the same aggregate relationships would be found with either actual or imputed variables. They address the methodological question of how to interpret aggregate relationships found in such regressions.

Keywords: Public Health Promotion; Economic Theory&Research; Information Technology; Scientific Research&Science Parks; Statistical&Mathematical Sciences; Economic Theory&Research; Econometrics; VN-Acb Mis -- IFC-00535908; Geographical Information Systems; Statistical&Mathematical Sciences (search for similar items in EconPapers)
Date: 2004-05-01
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