In this paper we show that unlike in Bayesian frameworks asymmetric information does matter and can explain differences in common knowledge decisions due to ambiguous character of agents' private information. Agents share a common-but-not-necessarily-additive prior beliefs represented by...

In this paper, we extend Aumann’s (Ann Stat 4:1236–1239, 1976) probabilistic agreement theorem to situations in which agents’ prior beliefs are represented by a common neo-additive capacity. In particular, we characterize the family of updating rules for neo-additive capacities, which are...

The resolution of a concrete problem lies at the heart of action research approaches. The purpose of this paper is to illustrate the practical difficulties implied by the adoption of a participative approach where the problem to be solved is constructed collaboratively with organizational...

We study a dynamic and in nite{dimensional model with Knightian uncertainty modeled by incomplete multiple prior preferences. In in- terior e cient allocations, agents share a common risk{adjusted prior and use the same subjective interest rate. Interior e cient alloca- tions and equilibria...

Kimball, 1990a and Kimball, 1990b established that income risk increases the marginal propensity to consume if and only if absolute prudence decreases. We characterize decreasing and increasing multivariate prudence and show that a multidimensional risk increases the marginal propensity to...

With population ageing in a changing PAYG system context, our aim is to identify whether households take into account a retirement risk in their global accumulation behaviour. We define the retirement risk as a long term revenue risk linked with changes in the generosity of the PAYG system. We...

We consider a formal approach to comparative risk aversion and apply it to intertemporal choice models. This makes it possible to investigate whether standard classes of utility functions, such as those inspired from Kihlstrom and Mirman (1974), Selden (1978), Epstein and Zin (1989) or Quiggin...