of beliefs (or ambiguity), imprecision of tastes (or multi-utility), and state dependence of utility. Examples include … phenomena, as well as state-dependent multi-utility generalisations of popular ambiguity models …Many decision situations involve two or more of the following divergences from subjective expected utility: imprecision …

In this paper we consider the effect of ambiguity on the private provision of public goods. Equilibrium is shown to …

Ambiguity refers to a decision situation under uncertainty when there is incomplete information about the likelihood of … ambiguity and ambiguity aversion. …

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 …

We consider individual's portfolio selection problems. Introducing the concept of ambiguity, we show the existence of … are represented by the Choquet integral with respect to the inner measure. Under the concept of ambiguity, it is … probabilities. Furthermore, we study the difference between ambiguity and uncertainty by considering investors' behavior. …

We show that ambiguity aversion increases the value of a statistical life as soon as the marginal utility of wealth is … higher if alive than dead. The intuition is that ambiguity aversion has a similar effect as an increase in the perceived … baseline mortality risk, and thus operates as the "dead anyway" effect. We suggest, however, that ambiguity aversion should …

Dynamic consistency leads to Bayesian updating under expected utility. We ask what it implies for the updating of more … ambiguity aversion. This characterization extends to regret-based models as well. As an application of our general result, we … characterize dynamically consistent updating for two important models of ambiguity averse preferences: the ambiguity averse smooth …

A game-theoretic framework that allows for explicitly randomized strategies is used to study the e ect of ambiguity … predictions of two player games with ambiguity averse and with ambiguity neutral players are observationally equivalent. This … beliefs to the context of ambiguity aversion yields substantially di erent predictions even for the case with just two players. …

We develop a theory of optimal stopping problems under ambiguity in continuous time. Using results from (backward … from the agent's ambiguity aversion. We show how to use these general results for search problems and American Options. …