Winner-take-all competitions can lead to the person in the second-tier (middle-tier) environment having the worst expected payoff when players exclusively choose their environment and exert effort before their random, heterogeneous environmental supports are realized. The tiers are defined by...

Einführung -- Eine Entscheidungstheorie für zeitoptimale Entscheidungen -- Risikoneigung über Zielerreichungszeiten - Eine Analyse auf Basis der klassischen Zeitpräferenztheorie -- Risikoneigung über Zielerreichungszeiten - Eine Analyse auf Basis eines neuen St. Petersburg-Spiels --...

We characterize 'Games of Altruistic Cooperation' as a class of games in which cooperation leaves the individual and the group of decision-makers worse off than defection, but favors individuals outside the group. An example is climate change mitigation. In this context, we experimentally...