Competence has been recently proposed as an explanation for the degree of ambiguity aversion. Using general knowledge questions we presented subjects with simple lotteries in which they could bet on an event and against the same event. We show that the sum of certainty equivalents for both bets...

In Individualexperimenten zeigte sich, daß Entscheider Situationen ohne Ambiguität gegenüber ansonsten gleichwertigen Situationen mit Ambiguität vorziehen. Die Stärke des Ambiguitäts-effektes ist mit der in der jeweiligen Situation empfundenen Kompetenz korreliert: niedrige (hohe)...

Framing effects are well known in individual decision making. Using experimental markets we investigated whether similar effects could be found in a market environment. Two series of experiments showed that negative framing can give different market prices than a positively framed endowment. We...