This paper studies an interfirm relationship characterized by the coexistence of cooperation and competition, that is, a relationship through which firms cooperate and compote simultaneously to appropriate the largest share of the resources created jointly. Our results show that firms＇ learning capacities can reflect and determine the levels of their commitments which may act as governance mechanism in the co-opetition relationship if the firms have the opportunities to access the resources undamaged to their partner＇s competences when learning from each other through the relationship. By the governance mechanism, firms can determine the levels of inputs of their resources individually and resolve the conflict resulting from the appropriation concerns, and thereby an interfirm co-opetition relationship can be established finally