Was ist Statistik? -- Merkmale und Daten -- Auswertung von eindimensionalen Daten -- Konzentrations- und Disparitätsmessung -- Verhältniszahlen, Messzahlen und Indexzahlen -- Auswertung von mehrdimensionalen Daten -- Analyse von Zeitreihen.

The paper investigates Lorenz dominance and generalized Lorenz dominance to compare distributions of economic status in one and several attributes. Restrictions of these dominance relations are developed that focus on central parts of the distributions and facilitate their comparison. Copyright...

The paper investigates Lorenz dominance and generalized Lorenz dominance to compare distributions of economic status in one and several attributes. Restrictions of these dominance relations are developed that focus on central parts of the distributions and facilitate their comparison. Copyright...

A new multivariate approach is introduced to identify the middle class of a society and to measure its possible decline. The middle class is a properly defined central region in attribute space that contains a fixed portion of the population. The decline of the middle class is measured by...