| Iron ore resources are the material basis for the survival and development of human beings. In the recent years, with the sustainable growth of national economy, restriction of iron ore resources and the environmental pollution caused by manufacture and consumption of iron ore resources become increasingly serious. Especially since 2003, the sharp rise of price of iron ore resources and the "environmental events" have broken out from time to time, and the great importance is attached to the realization of the sustainable utilization and development and circular economy of iron ore resources.Iron ore, the most important mineral resources, is one of the main bodies for development of circular economy, and it has strategic significance to develop the circular economy of iron ore resources. At present circular economy of iron ore resources in China is in the transitional period from innovation and guidance of concept to local testing, typical demonstration and implementation of full practice, and certain success is obtained. However, many local governments and iron ore resources utilization enterprises lack the systematic realization for principle of development force and realization mechanism of circular economy of iron ore resources, and the governments fail to abide by the economic law when making the policies to promote the development of circular economy; during the development of circular economy, iron ore resources utilization enterprises just complete the "administrative order", so "circulation but diseconomy" happens. To improve the shortcomings in the development of circular economy of iron ore resources, from the angle of economic system and utilization system of iron ore system, we should base ourselves upon the economic environment of utilization of iron ore resources in China, and study the power resources, realization mechanism and realization principle realized by circular economy of iron ore resources to supply theoretical support for sustainable development of circular economy of iron ore resources and promote the realization of circulation of iron ore resources. The keynote of this dissertation is concentrated on the realization mechanism of circular economy of iron ore resources in China and studies the realization mechanism of circular economy of iron ore resources in China from the aspects of power system, market mechanism, punishment mechanism and technical mechanism, which is possessed with the realistic significance and research value. Through the analysis of endowment characteristics, supply and demand condition and utilization mode of iron ore resources in China, the logical point in this dissertation insists that it is necessary for our country to develop the circular economy of iron ore resources in China. This dissertation performs the analysis for market mechanism, punishment mechanism and technical mechanism according to three components comprising of realization mechanism. Under the effect of market mechanism, the iron ore resources enterprises will not adopt the production mode of circular economy, so punishment mechanism is the necessity. The invigorative punishment mechanism and technical mechanism will promote the development of circular economy for iron ore resources enterprises to lead enterprises to consciously select circular economy mode when enterprises are pursuing the maximum profits and to realize the harmony of encouragement. Whether the iron ore resources enterprises adopt the circular economy mode is determined by benefit game and this research performs analysis for options of game strategies for both parties. At last this dissertation performs analysis and evaluation for the realization mechanism of circular economy of iron ore resources of WISCO. The dissertation comprises of 8 chapters and the major contents of each chapter are shown as follows:Chapterâ… IntroductionThe introduction will explain the background, significance of this research and research method. Through the general statement for references and conclusion of main achievements and shortcomings of realization mechanism research of circular economy of iron ore resources, this introduction summarizes the major research content, research method, major achievements and innovation points of this dissertation.Chapterâ…¡Theoretical Basis and Practice of Realization Mechanism of Circular Economy of Iron Ore ResourcesThis chapter explains the theoretical basis of realization mechanism research on circular economy of iron ore resources, including sustainable development theory, clean production theory, ecological industry theory, green manufacturing theory, circular economy theory, coordination theory and game theory. This paragraph summarizes and analyzes the internal and external practice for circular economy of iron ore resources. The endowment condition of iron ore resources in China is relatively worse, the demand for iron ore resources is larger than the supply, and the environmental pollution and ecological problems in the utilization of iron ore resources objectively require iron ore resources in China to follow the development mode of circular economy. The development of circular economy of iron ore resources in China has started in the technical aspects in enterprises and obtained certain success. Comparing with the steel and iron enterprises in advanced countries, there is still much gap between them and the perfect supporting system for circular economy is still needed.Chapterâ…¢Research on Power System and Market Mechanism Realized by Development of Circular Economy of Iron Ore Resources in ChinaFirst of all, this part puts forward the concept of power system of circular economy of iron ore resources. The power for the development of circular economy of iron ore resources for development and utilization by the enterprises comes from the demand of market, and the market demand is the power source for circular economy of iron ore resources. The competitive driving force, government stipulation force and technical pulling force derive from power source. Next, this paragraph briefly explains the connotation, characteristics and effect of market mechanism and analyzes the realization process of development of market mechanism of circular economy of iron ore resources. At last adopting the marginal analysis approach, the paragraph discusses the influence of development level of circular economy to equilibrium quantity and profits. This paragraph proposes that the iron ore resources enterprises will not select the production mode of circular economy under the influence of market mechanism.Chapterâ…£Policy Matrix and Regulation Mechanism of Circular Economy of Iron Ore Resources in ChinaThis chapter analyzes the characteristics of market failure of circular economy of iron ore resources and holds that the development of circular economy of iron ore resources is dependent on the stipulation of government. The stipulation of government for circular economy is realized by laws and regulations. The laws and regulations for circular economy of iron ore resources constitutes the different vectors according to its content and forms the policy matrix, including the tax policy vector, financial policy vector, fiscal policy vector and industrial policy vector. It is certain that a enterprise can enjoy the policy combination of promoting the circular economy and select the optimal policy vector according to the principle of benefit maximization of enterprise.Design of policy matrix of circular economy of iron ore resources belongs to the scale of mechanism design and is involved in the effective configuration, effective utilization of information and incentive compatibility. During the design of policy matrix of circular economy of iron ore resources, two principles should be followed: most effective utilization of information and incentive compatibility.The policy matrix is designed by government and authority departments and policy is classified into compulsory policy and encouraging policy. Under the compulsory policy, the market equilibrium quantity for iron ore resources enterprises will reduce. Under the encouraging policy of price subsidy, when the subsidy sum of circular economy of unit iron ore resources can not compensate the net loss of benefit of unit investment caused by executing the circular economy standard of circular economy of iron ore resources, the market equilibrium quantity for developing the circular economy of iron ore resources is less than it of traditional economic mode; when the subsidy sum can compensate the net loss of benefit caused by executing circular economy, the market equilibrium quantity for developing the circular economy of iron ore resources is larger than it of traditional economic modeChapterâ…¤Industry Process and Technical Mechanism of Circular Economy of Iron Ore Resources in ChinaThis chapter summarizes the cyclic utilization process of iron ore resources, and analyzes the key technology chain for geologic examination, mining engineering, beneficiation process, metallurgical technology and reutilization. Through the industry chain of iron ore resources, we can clearly realize the existence of technology chain.In the technology system of iron ore resources, the unstable mode dominates stable mode. The unstable mode comes to be known as order parameter of technology system and determines the operation process and evolution state of technology system. The key to technical coordination is to find the order parameter of system characteristics, which are key to promote the circular economy of iron ore resources. This research applies AHP mode, taking the iron making technology in metallurgical technology as the research object, and explains the determination process of order parameter in circular economy chain of iron ore resources.The realization for circular economy of iron ore resources is dependent on the scientific innovation and the resources input in technical innovation from enterprise in limited in a certain period. However, each link for technical chain of enterprise requires the innovation. In terms of reasonable allocation for limited resources, it requires the scientific evaluation for the innovation projects of technical chain of enterprise. This chapter applies DEA technology to analyze the technical innovation projects in technical chain of circular economy of iron ore resources to determine the most effective innovation project group.Finally this chapter adopts marginal analysis method to analyze the promotion effect of technical progress to circular economy, holding: depending on the technical progress, it is a long-term executing policy for the promotion of development of circular economy of iron ore resources to improve the general technical level in industry, reduce marginal cost curve to reduce the development cost of circular economy of iron ore resources. The encouraging policy can promote more enterprises develop the circular economy of iron ore resources and higher development level. Comparing it with the mechanism completely dependent on the market, the encouraging policy can more stimulate the enterprises to promote the realization of circular economy of iron ore resources by technical innovation and the reduction of investment cost of circular economy of iron ore resources in a long term.Chapterâ…¥Game Analysis of Realization of Circular Economy of Iron Ore ResourcesThis chapter discusses the content in two aspects based on the basic principle of game theory.1. Whether the iron ore resources enterprises adopt the circular economy mode is determined by benefit game. Iron ore resources enterprises will not select circular economy mode under the certain condition and it will directly affect the decision of enterprise whether the government will adopt the regulation force of circular economy mode for enterprises.2. Through the game analysis of dephosphoration process in industry chain of circular economy of iron ore resources, this chapter holds that every enterprise on the industry chain of iron ore resources execute the suboptimal policy to pursuit the benefit maximization. The benefit maximization of industry chain of iron ore resources and interposition of government authorities and trades society are quite necessary for the execution of optimal policy.Chapterâ…¦Realization Mechanism of Circular Economy of Iron Ore Resources of WISCOFirstly this chapter introduces the basic situation, industry background of developing circular economy and goal of development of circular economy planned by company. Secondly, this chapter analyzes the power and realization mechanism of developing circular economy for self-owned mines and metallurgical process. Next, the chapter generalizes the practice and the achievements obtained by developing the circular economy of iron ore resources of WISCO. Finally this chapter comments on the realization mechanism of circular economy of iron ore resources of WISCO and holding that the power for developing the circular economy of iron ore resources of WISCO originates from the demand of market and this demand is reflected on the demand for the public mass and each stipulation of government. The market mechanism plays a dominant role in the development of circular economy of iron ore resources of WISCO, punishment mechanism plays a restriction role in the development of circular economy of iron ore resources of WISCO and technical mechanism plays a promotion role in the development of circular economy of iron ore resources of WISCO. WISCO effectively promotes the execution of circular economy and improves the economic benefit of enterprise through technological transformation and elimination of the backward productivity. In a word, power for developing the circular economy of WISCO originates from the demand of market, and the coordination operation for each part of realization mechanism obtains a better effect.Chapterâ…§Conclusion and Research ProspectThe innovation points of research result in this dissertation are mainly reflected on the following three aspects:1. The dissertation puts forward the concept of power system of development of circular economy of iron ore resources and holds that the power source for development of circular economy of iron ore resources for development and utilization enterprises of iron ore resources originates from the demand of market. At present the circular economy of iron ore resources in China is in the advance stage and the market demand is reflected by the social mass depending on government. Therefore the market demand is the power source for circular economy of iron ore resources and competitive driving force, government stipulation force and technical promotion force are derived from power resource.2. The dissertation puts forward the incentive and consistency principle in the realization mechanism of circular economy of iron ore resources. The research analyzes the market mechanism, punishment mechanism and technical mechanism according to three components constituting the realization mechanism. The research holds that iron ore resources enterprise will not develop the circular economy and need punishment mechanism under the effect of market mechanism. The incentive punishment mechanism and technical mechanism will promote iron ore resources enterprise to develop the circular economy, consciously select the circular economy mode to realize the incentive compatibility while pursuing the benefit maximization.3. The realization for circular economy of iron ore resources is determined by benefit game. This chapter discusses the content in two aspects, taking the equilibrium analysis of game theory as tool.(1) Whether the iron ore resources adopt the circular economy mode is determined by benefit game. In order to pursuit the benefit maximization, the iron ore resources enterprise will not select the circular economy mode and the stipulation force of government will directly affect the development level of circular economy of iron ore resources enterprise.(2) Through the game analysis for dephosphoration process in industry chain of circular economy of iron ore resources, this dissertation holds that every enterprise on the industry chain of iron ore resources execute the suboptimal policy to pursuit the benefit maximization. The benefit maximization of industry chain of iron ore resources and interposition of government authorities and trades society are quite necessary for the execution of optimal policy.
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