Studying megaprojects from the micro-foundations rooted in organizational action and interaction, this research started with an extensive literature review and therefore proposed a conceptual model for governing government-project owner relationships. A cooperative game model was further developed based on the conceptual model and concession game theory. The results showed that the relationships between government and project owner could be indeed improved by considering the allocation of control rights within a certain range (0, \( \frac{A_1-{A}_2+2{B}_2}{2{B}_1+2{B}_2} \)). Also, it was shown in two cases that project value was increased by over 10% on average when achieving the concession equilibrium, which could bring gains to both the government and project owner by redistributing the added value. This study contributes to existing research on top-level inter-organizational relationships in water megaprojects, provides important implications for maintaining cooperation between megaproject stakeholders, and suggests interesting trajectories for future research.

从植根于组织行动和互动的微观基础研究大型项目，这项研究始于广泛的文献综述，因此提出了治理政府与项目所有者关系的概念模型。基于概念模型和特许博弈理论，进一步发展了合作博弈模型。结果表明，通过在一定范围内考虑控制权的分配（0，\（\ frac {A_1- {A} _2 + 2 {B} _2} {2 { B} _1 + 2 {B} _2} \））。另外，有两种情况表明，达到特许权平衡时，项目价值平均提高了10％以上，这可以通过重新分配增加值为政府和项目所有者带来收益。这项研究有助于对水大型项目中高层组织间关系的现有研究，对维持大型项目利益相关者之间的合作具有重要意义，并为未来的研究提供了有趣的轨迹。