Study On System Theory And Methods Of Infrastratural Investment Decision

The arrangement of domestic infrastructure investment is unreasonable, in that there exists an inequality between different investing departments, low-level repeating constructions, attrition of resources, and waste of capital, which caused insufficiency in the investment of some areas of infrastructure construction. This severely impedes the development of our economy and society. Therefore, the investment in infrastructures should be supported by scientific, reasonable decisions, which are based on scientific theories. So far, as existing literature shows that no research has been done to provide theories and methods which are specific to infrastructure products. Since infrastructure investment is crucial and significant to national economy, the present dissertation, A Study on the System Theories and Methods of Infrastructure Investment Decision, has social, economical, and theoretical significance.The dissertation first reviews the definitions of infrastructures, integrates the theoretical basis of infrastructure investment decisions, and studies the infrastructure investment decision system on the basis of system theories and methods. Secondly, based on the theoretical system construction, a system dynamic model of infrastructure investment decision is constructed, and a multi-property decision model under fuzzy environments is designed for infrastructure micro decision behaviours. Lastly, for the problem of individual preference in infrastructure micro decision behaviours, a study of the conformity of individual preference is carried out, and a building-up method of conformity of individual evaluation in infrastructure investment group decision is proposed.Innovations presenting in the dissertation are as follow:â‘´Based on theories in Economics, such as payment willing theory, theory of consumer surplus, theory of resource optimal allocation, externality theory and incorporeal effect theory, the paper sets up a framework for decision-making system of infrastructure investment.(2) Infrastructure investment decision is defined and analyzed by using system theories. And the process of system evolution is discussed. Moreover, a framework of infrastructure investment decision is built up, after the analysis of the micro and macro decision systems of infrastructure investment.(3) Micro and Macro levels of decision in infrastructure investment are proposed, and a holistic structure of infrastructure investment decision is constructed. Meanwhile, models and methods of the micro and macro decision in infrastructural investment are studied, and a system dynamic model of infrastructure investment macro decision is designed. Apart from that, a multi-property group decision model of micro decision under fuzzy environments is also constructed.(4) The conformity of individual preference in infrastructure investment group decision is studied and discussed by applying fuzzy preference theory, and ways of solving problems of individual preference in group decision is proposed also by using such theory.