Several updating rules for Choquet capacities have been proposed in the literature. We propose to study them in a general framework consisting of extending the definition of conditional expectations to the Choquet case. Then we adopt several relations between unconditional and conditional...

The voluntary provision of public goods can be enhanced by subsidies paid to contributors. However, in the case of threshold public goods, subsidies can be wasted if the public good is not ultimately produced. We therefore test the performance of a conditional subsidy paid to each contributor...