This thesis deals with decision making under ambiguity. Ambiguity refers to situations in which probabilities for uncertain events are partially known. Ambiguitysensitive behavior, as manifested in Ellsberg-type experiments, is today a widely studied phenomenon, then, first of all, there is an...

Die Arbeit will den in der Demokratietheorie in Mode gekommenen Begriff 'Deliberative Demokratie' genauer bestimmen. Dazu werden in Anlehnung an Hubertus Buchstein drei 'Versionen' der Theorie untersucht: der spieltheoretische Ansatz (schwache Version), der Ansatz von Jürgen Habermas (starke...