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Reserach Seminar Operations - ""Double-calibration estimators accounting for under-coverage and nonresponse in socio-economic surveys " - Maria Michela Dickson (University of Trento)

Under-coverage and nonresponse problems are jointly present in most socioeconomic surveys. The purpose of this paper is to propose a completely designbased estimation strategy that accounts for both problems without resorting to models but simply performing a two-step calibration. The first calibration exploits a set of auxiliary variables only available for the units in the sampled population to account for nonresponse. The second calibration exploits a different set of auxiliary variables available for the whole population, to account for under-coverage. The two calibrations are then unified in a double-calibration estimator. Mean and variance of the estimator are derived up to the first order of approximation. Conditions ensuring approximate unbiasedness are derived and discussed. The strategy is empirically checked by a simulation study performed on a set of artificial populations. A case study is lead on Danish data coming from the European Union Statistics on Income and Living Conditions survey. The strategy proposed is flexible and suitable in most situations in which both under-coverage and nonresponse are present. Joint work with Giuseppe Espa and Lorenzo Fattorini

Publié le 18 janv. 2019
Lieu
Anthropole, 3034
Format
Présentiel

Intervenante(s), Intervenant(s)

Maria Michela Dickson

Organisation

V. Chavez et M. Wilhelm

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