  In this paper, we present a model of Partnership Game with respect to the
important role of partnership and cooperation in nowdays life. Since such
interactions are repeated frequently, we study this model as a Stage Game in
the structure of infinitely repeated games with a discount factor $\delta$ and
Trigger strategy. We calculate and compare the payoffs of cooperation and
violation and as an important result of this study, we show that each partner
will adhere to the cooperation.
