This article considers the effect of changing household wealth on changes in utilization.

Under the internal model approach (IMA) stipulated by Basel II, financial institutions are allowed to develop and employ proprietary internal models to evaluate various risk. However, the flexibility to develop a proprietary model leads to the question of which computing method delivers the most...

Statistical inferences about the dispersion of multivariate population are determined by generalized variance. In this article, we consider constructing a confidence interval and testing the hypotheses about the ratio of two independent generalized variances, and the ratio of two dependent...

The article discusses the quality of population census data - information obtained in the oldest, largest and most famous statistical surveys. In particular, the quality assessment of census data refers to the Polish experience. The article aims to propose an integrated approach to censuses,...