A negotiation strategy where both parties gain roughly equal advantage. The parties agree to act in both their own interest and in the interest of the group. The basis for any win-win situation is that compromise and cooperation must be more or at least as important as competition. This negotiation strategy is typical of cooperative negotiators that belongs to the most developed countries such as Sweden, Canada or Japan. This strategy is opposed to a win-lose strategy or zero-sum game. Negotiation and Business Culture Guides by Countries.