A Study On The Collusion Of Government Bidding And Bidding Agencies Of Government Investment Constructions

With the promotion of bidding system in government investment projects,bidding agencies gradually play an important role in the bidding process,but with the expansion of bidding,because of the bidder can not grasp the bidding agency which has know all the information of other opponent,making the bidding agency against the occupation moral.Frequently,because of the long cycle of government investment projects,the characteristics of large amount of investment,the bidder and the tendering agency to reap more benefits from it,and then induce the occurrence of collusion,hinder the development of society and economy.In this paper,based on the motives of the collusion between the bidders and the bidding agency,the author makes an in-depth study on the process of collusion between the two parties.This paper mainly discussed the collusion behavior among the bidder and bidding agency in the construction project of government investment.At first,defines the meaning and characteristics of government investment projects,analyzes the two types of collusion behavior subject;secondly,the Bayesian theory was introduced to construct a Bayesian network to identify the two collusion motivation,the main motivation to analyze the collusion for bidder is in order to achieve maximum benefits,the main motivation of bidding agency collusion which is to have power;thirdly,using the evolutionary game of the two collusion process evolution analysis,construct the payoff matrix and got five equilibrium points,and then introduces the system dynamics theory,constructs Dynamic Causality Diagram and the evolutionary game system and the tendering agency collusion flow chart,analyzes the relationship between the impact of each variable,using the VENSIM software of PLE Dynamic evolutionary game system model simulation and carried out policy simulationas well as analyzed the simulation results.Finally,the main motivation and identified based on the simulation results to prevent collusion between bidders and the tendering agency proposed.Government investment project bidding agency and the bidder collusion occurs because of huge amount of the government invested,high technical difficulty and complexity of project management to make it profitable.By combining Bayesian and evolutionary game theory as well as the system dynamics theory,and through mathematical modeling and simulation clearly depicts the whole dynamic process of collusion,and get a collusion suppression between bidders and the tendering agency proposed,it is a good certain reference significance to solve the similar construction project irregularities collusion.