Model and Simulation of Benefit Distribution of Collaborative Cooperation in the Supply Chain of General Contracting Projects

In the supply chain of general contracting projects, there are many participating entities, which can easily lead to conflicts of interest and resources. In order to fully mobilize the enthusiasm of general contractors and subcontractors, achieve stability, maximize the benefits of the supply chain system, and improve the operational efficiency of the supply chain, it is necessary to design a scientifically reasonable mechanism for benefit distribution to coordinate the relationships between all members. This paper takes the general contractor and subcontractor in the supply chain of the general contracting project as the research objects and uses the Cobb–Douglas function to establish the benefit distribution model of the cooperation between the two in the supply chain system and analyzes the benefit distribution problem of the one-time cooperation and multiple cooperation between the two parties in the two decision-making modes of egoism and collectivism. The results show that in the case of one-time cooperation between general contractors and subcontractors, regardless of the decision mode, the degree of effort of both parties is positively related to their contributions and negatively related to each other’s contributions; the overall benefit of the supply chain system is positively proportional to the degree of contribution of the general contractor and inversely proportional to the share of benefit distribution of the subcontractor. In multiple cooperation, the equilibrium result of both parties achieving Pareto optimality at each stage is that both parties choose to cooperate.

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