1. Introduction -- 1. Collective decisions and power structure -- 2. Social choice -- 3. Games and game forms -- 4. The effectivity functions of a game form -- 5. Effectivity functions and cooperative games -- 6. An overview of the book -- 7. Notes -- 2. The structure of effectivity functions --...

The paper introduces an abstract economy with imperfect competition; the choice of allocation takes place through an abstract mechanism, when produceres choose strategies and the outcome is (a set of) feasible allocations, where the consumers' choices are sustained by the market mechanism at...

A simple two-country model of international trade under uncertainty is considered, where investors choose uncertain projects depending on interest rates, with high rates leading to risky projects. If investment is financed by bond markets, there can be asymmetric equilibria which can be Pareto...