1. Faculty of Sciences , University of Granada , Granada, Spain mrueda@ugr.es;3. Faculty of Sciences , University of Almería , Almería, Spain;4. Faculty of Sciences , University of Granada , Granada, Spain
Abstract:
The estimation of the finite population mean in successive occasions is investigated with calibration estimators in this article. We propose several estimators based on calibration techniques with arbitrary sampling design in each of the occasions. Asymptotic variance formulaes are derived for the proposed estimators. The properties of these estimators are studied via a simulation study and using natural populations.