Study On The Engineering Cost Audit In The Implementation Phase Of Government Investment Projects Under The Condition Of Asymmetric Information

With the determination and implementation of the policy of reform and opening up,the economic construction develop rapidly,fixed assets investment is increasing, the scale and number of the government investment projects is increasing.The funds used in the government investment projects often come from financial funds, or fiscal funds accounted for the main part.But because of the different position and angle,users and managers of funds often do not represent the interests of the government and the public.In order to solve this problem, it is necessary to strengthen the timely and appropriate audit supervision.Therefore,the task of the government investment project cost audit is heavy and difficult.In the cost audit practice, the traditional audit model exposed a lot of problems, increased the audit risk,and has been unable to meet the requirements of the current audit.New audit methods and methods are not mature?The government investment project cost audit urgently needs new theories, new methods and new models.The engineering cost audit in the implementation phase of government investment projects is an important part of the project cost audit.It is also an important part of audit of fixed assets investment of government audit institutions at all levels.Project cost audit is a professional work,it has put forward higher requirements for auditors.To ensure the quality of project cost audit,auditors must adopt scientific methods, good negotiation skills and computer aided software, and maintain a good professional ethics.The technology methods and management theories of different disciplines are introduced into the research of the cost audit of the government investment projects, which has a very important significance to the development of audit methods and theories.The Introduction not only broadens the theoretical basis of the audit, but also makes new progress in the integration of the audit and other areas.At the same time it has a new stage of improving the audit risk, ensure audit quality and so on.Based on information theory, game theory, synergy theory and audit theory, this paper analyzes the relevant issues of the cost audit in the implementation phase of the government investment projects.Based on the theory of information asymmetry,this paper analyzes the asymmetry in the project cost audit of the government investment projects,And information superiority and information vulnerable of the different parties participating in the construction.It is pointedout that because of the existence of this kind of asymmetric information(private information),the authenticity and accuracy of the audit can not be guaranteed,and then the audit risk is Triggered.Based on the basic idea of game theory,this paper analyzes the game behavior of each participant in the game model in project cost audit in the implementation phase of government investment projects.Under the premise of the game hypothesis,this paper quantitatively studies the conditions of the collusion of each participant.It is suggested that the design of punishment rules can change the environment in which people are involved,the the probability of collusion is Reduced.Through the quantitative analysis of the game model which consists of three parties and four parties,In this paper, this paper obtain the conditional and draw the conclusion:With the increasing input of audit, the subjective probability of collusion of construction unit, construction unit and supervision unit is found to increase.The lower bound of the total revenue increases, while the upper bound decreases,and then the interval of the collusion condition was reduced.In the tracking audit mode, the independence of supervision is strengthened continuously,supervision units will withdraw from the collusion group.Finally the main body of the game is changed into: audit, construction,construction unit.Based on synergy theory,taking the overall performance of government investment projects as the goal,the evaluation standard of cost audit is no longer only an increase or decrease in investment or cost,but the overall goal of the construction project based on the synergy index.Taking the four factors(project quality, schedule, material supply, management)as the subsystem, this paper establishes the evaluation system model of cost audit,and creatively puts forward a new cost audit evaluation mechanism.Through the project synergy index analysis, the audit institutions can find out the problem of the project,and feedback the information to the project construction unit,put forward reasonable audit suggestions,promote the improvement of the overall efficiency of the government investment projects,reduce the risk of cost audit.The paper which stands on the position of the National Audit Office, takes the government investment project as the object,take the implementation stage as the time range,takes the cost audit as the content, is analyzed from many aspects and angles.Although the paper has achieved certain results, but there are still a lot of deficiencies and defects,such as the tightness of thinking,assumptions of rationality,the rigor of problem analysis,the practicability of the research results,the operability of evaluation system.In the future research and practice, the audit theory should be further expanded and improved to make the government investment projects rational planning, legal construction, compliance implementation.