A particular shortcoming of panel surveys is potential bias arising from selective attrition. Based on data from the German Socio-Economic Panel Study (SOEP) we analyze potential artifacts (level, structure, inequality of income) by comparing results from two independently drawn panel...

The huge technological improvement in data processing and the globalization have increased the demand for and the supply of indices that quantify the consequences of a policy. However, there are certain cases that quantification may be misleading in the sense that it gives the impression of an...

The melting pot policy intends to create a new generation of migrants that will assimilate with the native population. The instruments used by the policy makers are fiscal and educational policies, which are intended to eliminate disparities between the migrants and the native population. The...

The aim of this paper is to suggest a new, nonparametric multiple regression method, based on the Extended Gini (EG) measures of dispersion, which enables the user to follow the curvature of the regression curve. The method is capable of estimating a series of linear approximations of the...

The basic assumption in regression analysis is that there is a linear relationship between the dependent and the independent variable over the entire range of the independent variable. The resultant regression coefficient conveys qualitative and quantitative information about the relationship....

We consider statistical tests concerning various relationships between two absolute concentration curves (ACC). In particular, we consider tests for determining if the two ACC's coincide, one is above another in a specified order, or do not intersect without specifying which one is above/below...