We consider environments in which agents can cooperate on multiple issues and externalities are present both within and across issues. We propose a way to extend (Shapley) values that have been put forward to deal with externalities within issues to games where there are externalities within and...

Although global free trade is efficient, each country's benefit from free trade depends on the path that leads to the global free trade agreement. Using a dynamic model of trading bloc formation, we how that when global free trade is reached gradually, the countries that are initially excluded...