This paper proposes a measure of uncertainty-aversion analogous to the Arrow-Pratt Measure of risk aversion. We apply it to multiple priors and non additive probability models of uncertaity. In these models there is non distinction between uncertainty and aversion to it. Hence our theory can...

Capital uncertain or risk assets are typically excluded from traditional broad monetary aggregates. Barnett et al (1997), however, extend the Divisia aggregation methodology to incorporate such assets. In addition, recent evidence provided by Drake et al (1998) auggests that risky assets are...

We study a decision-maker who follows the Savage axioms. We show that if s(he) is able to take unobservable actions which influence the probabilities of outcomes then it can appear to an outsider as if his/her subjective probabilities are non-additive. Implications for multi-period decisions are...

This paper introduces E-capacities as a representation of beliefs which incorporates objective information about the probability of events. It can be shown that the Choquet integral of an E-capacity is the Ellsberg representation. The paper further explores properties of this representation of...

We examine the effect of introducing Knightian uncertainty into a simple model of public good provision. We find that uncertainty may reduce the free-rider problem if utility is concave in public goods or there are decreasing returns to scale in the production of public goods. It is possible...