In a sequential bargaining model of coalition formation and payoff M division players form demands for their participation in a coalition. These M demands have some appealing, intuitive features. We characterize the sets of M semi-stable and stable demands vectors for general NTU games using M...

It will be shown that for rational players with a sufficiently large time horizon it is advantageous to keep promises and not to cheat even if cheating is the optimal behaviour in the short run. This explains why ethics could develop in a market economy where incentives to cheat are ubiquitous.