Co-operation which concentrates on implementing positive sum games has several important inherent advantages. With positive-sum games. voluntary agreements, once reached, will prove durable. All participants have a positive interest in abiding by their undertakings. so there is no need to waste time on complex procedural matters. It is not necessary to divert scarce time and goodwill on the lengthy process of drafting legalistic texts. then making them formally binding by requiring the formal ratification of international treaties by the legislatures of each participant. Nor will it be necessary to set up enforcement mechanisms. Moreover, if each proposal is a positive-sum game. then each issue can be considered in its own right. without the need to construct complex "package deals