Ritschard, Gilbert; Dozio, Alessandro - In: Swiss Journal of Economics and Statistics (SJES) 131 (1995) IV, pp. 649-672
The paper establishes the theoretical properties of a synthesized index number computed from an a posteriori stratified sample. The index number considered can be expressed as a weighted mean of the mean ratios computed for the subsamples. In the first part, we show that the index has a biais in...