| The construction phase of a construction project is the phase in which building materials are used to form building products.This phase includes the entire process of material procurement,transportation,storage and use.When the following three situations occur:materials that are included in the bill of quantities quoted as provisional estimates in the bidding documents;materials purchased and supplied by the owner according to regulations are changed to materials purchased and supplied by the constructor for some reason;legal and reasonable procedures are passed The changed materials(which do not exist in the contract and are not included in the information price)should be recognized for the price.In the work of material recognition and price recognition in the construction phase,the construction party provides the owner with supplier information and material information to replace the owner in the purchase of materials,and the construction party reports the material price and the price of the material when the construction party purchases in order to obtain the confirmation price list The difference in income may be proactively providing rent to suppliers.Therefore,the rent-seeking behavior of construction parties and suppliers for additional benefits will reduce the owner’s investment efficiency and capital utilization rate,leading to increased costs and quality of the entire construction project,and even a waste of social resources.Therefore,it is worthwhile to conduct a game research on the rent-seeking behavior among stakeholders in the construction stage.Based on the analysis of the status quo of material recognition and price recognition in the construction phase and the game between stakeholders of construction projects,this paper defines the relevant concepts of material recognition and price recognition in the construction phase;introduces stakeholder theory,game theory and rent-seeking behavior,The system analyzes and divides the stakeholders of the material recognition and price recognition in the construction phase,and extracts the owners,construction parties and suppliers as the main game players in this article;detailed analysis of the rent-seeking behavior of each game main body in the work of material recognition and price recognition during the construction,Game behavior,rent-seeking behavior,the main reasons and possible consequences,and thus established a static game model of incomplete information among the owners,constructors,and suppliers in the work of material recognition and price recognition in the construction phase.The model obtains the Nash equilibrium solution,and proposes corresponding rent-seeking behavior prevention measures based on the obtained Nash equilibrium solution.Through the establishment of the Nash equilibrium solution obtained by the core stakeholder game model in the work of material recognition and pricing in the construction stage,the impact of relevant decisions and corresponding parameters on the game equilibrium solution is studied,and the specific parameters of the control game are proposed from the perspective of the owner.Suggestions and opinions,thereby reducing rent-seeking behavior in the work of material recognition and price recognition in the construction phase,and guide the benign cooperation between the core stakeholders of material recognition and price recognition in the construction phase.The research of this article can broaden the application field of game theory,promote the development of material recognition and price recognition in the construction phase,improve the efficiency and management level of material recognition and price recognition in the construction phase,and provide a certain reference for enhancing the efficiency of the owner’s capital use. |