A model for constructing quadratic, polynomial, and separable objective functions from interviewing experts is considered. The person interviewed is presented a set of incomplete alternatives (vectors of target variables, with one coordinate not being fixed) and is asked to complete these...

We provide intuitive, formal, and computational evidence that in a large society Condorcet's paradox (the intransitivity of social preference obtained by pairwise vote) can hardly occur. For that purpose, we compare two models of social choice, one based on voting and another one based on...

In Tanguiane (1991, 1993, 1994) we have introduced quantitative indicators of representativeness, with which we have estimated the capacity of individuals and limited groups to represent a collective preference. We have studied three forms of representation: (a) single representative...

The outcomes of the 2013 German Bundestag (federal parliament) are analyzed from the viewpoint of direct democracy. For this purpose, the party positions on 36 topical issues are compared with the results of public opinion polls, and the party and coalition indices of popularity (the average...

The outcomes of the 2013 German Bundestag (federal parliament) election are analyzed from the viewpoint of direct democracy. For this purpose, the party positions on 36 topical issues are compared with the results of public opinion polls, and the party and coalition indices of popularity (the...

Aufgrund der Daten der Dritten Europäischen Umfrage für Arbeitsbedingungen wurde für den Vergleich europäischer Staaten ein zusammengesetzter Indikator der Arbeitsbedingungen aufgestellt. Die wichtigsten Forschungsergebnisse sind wie folgt: (a) die Ungleichheit zwischen europäischen Staaten...

German structural policy is characterized by a composite indicator with three targets:(1) minimization of unemployment, (2) maximization of GDP, and (3) equalization of regional unemployment rates. The composite indicator with given target weights is maximized subject to budget constraints and...