The aim of this paper is to propose a model of decision-making for lotteries. The key element of the theory is the use of lottery qualities. Qualities allow the derivation of optimal decision-making processes and are taken explicitly into account for lottery evaluation. Our contribution explains...

The aim of this paper is to propose a model of decision-making for lotteries. Lottery qualities are the key concepts of the theory. Qualities allow the derivation of optimal decision-making processes and are taken explicitly into account for lottery evaluation. Our contribution explains the...

Previous studies show that group risk taking can be more conservative than individual risk taking. Two common, but untested reasons for this greater caution are the influence of social responsibility and a tendency to conform to the preferences of others. We study changes in risk taking in...