An important result in convex analysis is the duality between a closed convex set and its support function. We exploit this duality to develop a novel geometric approach to mechanism design. For a general class of social choice problems we characterize the feasible set, which is closed and...

This paper investigates to what extent voters and politicians have the same preferences for locally provided welfare services. We make use of two different types of survey questionnaires; one directed towards voters and one directed towards politicians. We reach two main conclusions in the...

We analyze the factors that influence the support for environmental policy proposals. Swiss referendum data show that proposals obtain more yes-votes if they do not restrict consumption possibilities directly, if they are endorsed by the largest business association, if environmental preferences...

We introduce reward money into the provision point mechanism with refunds. Reward money is distributed among the contributors in proportion to their contributions only when the provision point is not reached. In environments without aggregate uncertainty, the provision point is always reached in...

We study the stability of voluntary cooperation in response to varying group growth rates. Using a laboratory public-good game, we construct a situation where increasing group size yields potential efficiency gains, but only with sustained cooperation. We then study the effect of exogenously...