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depart from the sure thing principle and model the phenomenon of ambiguity and ambiguity aversion. …
Persistent link: https://www.econbiz.de/10014025442
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 …
Persistent link: https://www.econbiz.de/10010371082
We provide an axiomatic approach to a belief formation process in an informational environment characterized by limited, heterogenous and differently precise information. For a list of previously observed cases an agent needs to express her belief by assigning probabilities to possible outcomes....
Persistent link: https://www.econbiz.de/10010356678
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 …
Persistent link: https://www.econbiz.de/10010364762
We provide an evolutionary foundation to evidence that in some situations humans maintain optimistic or pessimistic attitudes towards uncertainty and are ignorant to relevant aspects of the environment. Players in strategic games face Knightian uncertainty about opponents' actions and maximize...
Persistent link: https://www.econbiz.de/10010366542
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 …
Persistent link: https://www.econbiz.de/10012152068
We provide an evolutionary foundation to evidence that in some situations humans maintain either optimistic or pessimistic attitudes towards uncertainty and are ignorant to relevant aspects of the environment. Players in strategic games face Knightian uncertainty about opponents' actions and...
Persistent link: https://www.econbiz.de/10012101422
to dynamically consistent behavior. Furthermore, we give an example which shows that ambiguity can introduce new …
Persistent link: https://www.econbiz.de/10011892219
This paper proposes that the ambiguity reflected by a set of priors remains unchanged when the set is translated within … the probability simplex, i.e. ambiguity is location invariant. This unifies and generalises numerous influential … definitions of ambiguity in the literature. Location invariance is applied to normal form games where players perceive strategic …
Persistent link: https://www.econbiz.de/10015070507
We introduce a new solution concept for games in extensive form with perfect information, valuation equilibrium, which is based on a partition of each player's moves into similarity classes. A valuation of a player is a real-valued function on the set of her similarity classes. In this...
Persistent link: https://www.econbiz.de/10011599386