Direct estimators Sample Clauses

Direct estimators. Even if the domains we consider are combinations of planned domains, we plan to modify the official final weights published in the EU SILC data set, in order to have weights calibrated on the distribution of the Province of Pisa population by Municipalities and Health Society. We recall that final published weights are obtained by a double calibration correction of basic weights that are defined as the inverse of inclusion probabilities. The first step adjusts basic weights for non­ response, while the second step modifies these intermediate weights to calibrate them to known totals as suggested in the Eurostat guidelines for the EU SILC survey (Istat, 2008). In particular, the distribution of the population by gender, age class and geographical region will be considered. In order to obtain weights calibrated on the distribution of the population in the domains of interest (i.e. Municipalities and Health Societies), we plan to start from the survey intermediate weights and re­make the second step, considering the following calibration variables: Administrative Region of residence, household type7, gender and age (5 classes). More precisely, the weights will be calibrated to the population of Administrative Regions classified by household typology and to the same population classified by age classes. In the calculation of the calibration weights, we will refer to methods which have the advantage of producing always positive weights (see Deville and Xxxxxxx, 1992 for more details). 7 Nine household typologies are considered in the EU-SILC survey. These typologies are defined by simultaneously considering the household size, the presence of children and the age of components. They are defined as follows: 1. One person households; 2. Two adults, no dependent children, both adults under 65 years; 3. Two adults, no dependent children, at least one adult 65 years or more; 4. Other households without dependent children; 5. Single parent household, one or more dependent children; 6. Two adults, one dependent child; 7. Two adults, two dependent children; 8. Two adults, three or more dependent children; 9. Other households with dependent children.