This paper deals with some problems in the measurement of inequality when negative incomes are allowed. A helpful axiom is defined, called the Greatest Gets More axiom. Using this axiom it can be shown that the properties of some inequality measures depend on whether there are negative incomes...

Im Bereich der Messung der Änderung von Ungleichheit sind schon einige Maße vorgeschlagen worden. Doch bis jetzt hat noch niemand versucht, auf Grundlage von bestimmten Axiomen eine Klasse von dynamischen Ungleichheitsmaßen herzuleiten. Dies geschieht in dieser Arbeit. Nach der Definition der...

This paper investigates the concentration in the Swedish and Finnish insurance market. It considers the development of concentration over time and the differences between the two countries. The insurance industry is divided into life and non-life insurance companies. The concentration is...

Most empirical studies on poverty consider the extent of poverty either for the entire society or for separate groups like elderly people.However, these papers do not show what the situation looks like for persons of a certain age. In this paper poverty measures depending on age are derived...

Most empirical studies on poverty consider the extent of poverty either for the entire society or for separate groups like elderly people.However, these papers do not show what the situation looks like for persons of a certain age. In this paper poverty measures depending on age are derived...