How to promote the application of blockchain in prefabricated building supply chain? Analysis based on evolutionary game

Prefabricated buildings have become an effective way to sustainable development. At the same time, the process from component production to assembly also puts forward higher requirements for data between the subjects of each project. As a powerful database storage system, blockchain technology (BCT) can meet the needs of it, but the BCT has not been widely used. In addition, the Chinese government has issued a series of policy documents in recent years to promote smart digital technologies such as BCT, which have not been well implemented. Therefore, this paper analyzes the decision-making behavior mechanism of stakeholders and the factors that affect the implementation of BCT by establishing an asymmetric evolutionary game model. The model results reveal how to effectively promote the application of BCT in the supply chain of prefabricated buildings and help the government to stimulate the enthusiasm of other stakeholders to use BCT.