depart from the sure thing principle and model the phenomenon of ambiguity and ambiguity aversion. …

ambiguity. In each round of a finite rep- etition of a finite stage-game, in addition to the classic pure and mixed actions … their intentions. We find that adding an infinitesimal level of ambiguity can be enough to approximate collusive payoffs via …

. For both ambiguity averse and neutral subjects within this population, one significant channel is behavioral in nature … (anchoring). For ambiguity averse subjects, another channel of similar magnitude is hedging motivated by the desire to reduce … ambiguity. This channel is absent in the case of ambiguity neutral subjects. …

We present a non-technical account of ambiguity in strategic games and show how it may be applied to economics and … social sciences. Optimistic and pessimistic responses to ambiguity are formally modelled. We show that pessimism has the … ambiguity on peace-making are examined. It is shown that ambiguity may select equilibria in coordination games with multiple …

I experimentally examine whether feedback about others' choices provides an anchor for decision-making under ambiguity … relative ambiguity attitude (compared to the peer's) significantly matters for shifts in individual attitudes, and that … dynamics considerably differ between gain and loss domains. For gains, learning to be comparably ambiguity averse increases the …

individuals use this ambiguity strategically as a moral wiggle room to act less generously without feeling guilty. Such excuse … excuse-driven behavior is comparable under ambiguity and under risk. Individuals exploit any type of uncertainty as an excuse …