Based On The Network Balanced Environmental Policy Of The Logistics System Design

As a main part of the whole social economy system, modern logistics is one of the key chains in the sustainable development of the social economy. Along with China's economy development, logistics demand increases rapidly, logistics activities are more frequent, and at the same time, its negative effect on environment is getting more and more serious. To reduce environmental damage caused by logistics, the government's macroeconomic management is considered as a necessary measure.Based on the theory of morden logistics management, environmental economics, operation research, management science and so on, we do a systematic research on logistics system and corresponding environmental economic policies. By integrating transportation equilibrium theory, consumer choice theory, firm competition theory with variational inequality approach, we establish equilibrium models with environmental economic policies for transportation logistics subsystem, production logistics subsystem and reverse logistics subsystem. Details are as follows:1. We analyse logistics system theory from dimensions of systems science and super-network theory, and give the corresponding definition, elements, functions and features. According to the functional structure and pollution sources of logistics system, we focuse on transportation logistics subsystem, production logistics subsystem and reverse logistics subsystem, and then summarizes the environmental policies corresponding to these subsystems.2. Transportation equilibrium problem and emission charge policy design. We suppose that there are heterogeneous users in the traffic network, the difference is reflected in their value of time and exhaust emission. Suppose the government control congestion and pollution simultaneously, we establish a multi-model transportation equilibrium model based on stochastic user equilibrium. The optimal congestion and emission charge policy according to type of user is derived, which can ensure the user equilibrium flow and system optimal flow is consistent. Finally, we discuss how to evaluate this optimal policy.3. Transportation equilibrium problem and emission permit trading policy design. We suppose that there are heterogeneous users in the traffic network, the difference is reflected in their value of time and exhaust emission. Suppose the government controls the total amount of emission permit, a transportation equilibrium model including permit trading market equilibrium is established. We study the relationship between the user equilibrium flow and the equilibrium price, and find the conditions of existence and uniqueness of the equilibrium solution.4. Production logistics equilibrium problem and emission permit trading policy design. We suppose that there are heterogeneous manufacturers in the supply chain network, the difference between them embodies in their pollution extent. After analyses the behavior of manufacturers, retailers and consumers by using the Nash equilibrium, we established multi-commodity supply chain network equilibrium model including permit trading market equilibrium. Results show that the total pollution will not exceed the total amount of emission permit, the manufacturers' differences can affect the policy performance significantly.5. Reverse logistics equilibrium problem and remanufacturing subsidies policy design. We suppose that there are two types of production, new and remanufactured goods, in the reverse logistics network. Based on the value function of consumers, the market demand functions for new goods and remanufactured ones are derived. Then for three different remanufacturing market structures, we establish market equilibrium model respectively and get the function of equilibrium price and trading volume. The study finds out the relations between subsidies and market share.6. Reverse logistics equilibrium problem and recycling subsidies policy design. We suppose that there are many types of production in the supply chain network, and the demand is stochastic. Suppose the government controls the total amount of recycled goods and subsidies, a closed-loop supply chain network equilibrium model including recycling subsidies is established. The study shows that, after the implementation of the subsidy policy, the trading volume of raw materials decreased, but commodity trading volume rising.This paper has both theoretical value and practical significance to a certain extent.