| Pork food safety and Price stability do beneficial relationship to the people's livelihood, effective operation and management of pig green supply chain mode can promote the steady supply of live pig, guarantee pork food safety.(1) Pork is China's important agricultural product, is the main source of consumption of meat of our country urban and rural dweller.Pork food safety matters to people health and life safety, but at the present the foundation of our country pork food safety is relatively weak, the pig industry scale, organization, standardization rate is low, enterprise credit system is not perfect, food safety regulations, standards are not sound enough, monitoring technology is not advanced, because of interest drive to pork food safety law problems increased, such as the recent clenbuterol problem. So the study on the nodes of the pig supply chain distribution, risk mechanism, interest mechanism, performance and stability can guarantee the safety of food supply.(2) Due to the pork food is the main source of residents' consumption of meat, so the price of pork influences urban and rural residents' daily life consumption expenditure and consumption demand. From live pig supply chain perspective, the price of pork is actually in the supply chain's value distribution terminal embodiment. Pig supply chain value in pig breeding, pig broker, live pig buys, slaughter of live pigs and pork sales distribution of pork price fluctuations, and contract fulfillment and relationship management affect the transaction cost and social cost, thereby affecting the price of pork, ultimately reflected in the stability of the supply chain. Social factors (communication,commitment,perceived satisfaction,dependent) and economic factors (capital of special sex, uncertainty, behavior of environmental uncertainty and internal complexity) and other effects of contract and relationship management. Therefore, study on the pork supply chain will help clarify the pork price formation mechanism.Research significance:As a result of live pig market demand characteristics, market demand distribution and other factors, competition of the hog market is relatively mild, but in recent years the supply of live pigs from most farmer comes loose raise to company moderate scale aquaculture development, at the same time, food safety and price stability and other aspects of the request, so that in the industry or the industry, manufacturers of each node competition is more and more intense, so the node manufacturers build effective continuity of supply chain relationship to enhance competitive advantage (e.g. Primo and Amundson,2002; Johnston et al.,2004; Griffith et al.,2006), but since the core of supply chain companies in the supply chain in the natural state of the node location is different, in the establishment of effective and sustainable supply chain or in its supply chain nodes extending in different ways, so that formed the different supply chain mode, supply chain mode due to different nodes, the division of labor and cooperation between different nodes, the interest coupling in different ways, different system arrangement, leading to supply chain performance there, in this aspect, the existing research lacks, worthy of further study.Research significance:Because differences of live pig supply chain supply chain operation mechanism, internal organization distribution exist between each node, the contract fulfillment, relationship management, cooperation surplus distribution will affect the stable and effective operation of the supply chain (Wan Junyi,20082010; meters Yun-sheng,2009), this research field is worthy of further development study.Research significance:in general live pig supply chain downstream is farmer, because the farmer operation is different, so the contract binding, the degree of asymmetric information and reputation mechanism are not the same (Yin Yunsong,2003). Because of the impact of transaction cost,such as:the pig poultry house labor and asset specificity, the uncertainty of transaction, transaction frequency (Williamson,1985), the objective existence of the incomplete contract (Grossman and Hart,1986) and bounded rationality (Simon,1955) the forward transaction risk agglomeration effect increases (Wan Junyi,2008), order agriculture contract to honor the agreement rate is not high (Liu Fengqin,2003). Supply chain relationship includes not only economic factors, but also include social exchange factor (Choi and Hartley,1996; Rousseau et al.,1998; Johnston et al.,2004), therefore, live pig supply chain economic trading factors and social factors integration mode remains to study further.The project will be in draw lessons from domestic and international supply chain management, agricultural technology economics and sociology on the basis of research results, the combination of our country live pig green supply chain in the field research and in-depth interview data and information, the live pig of green supply chain and classify and analyze all kinds of live pig, green supply chain operation model and its inherent mechanism; on the basis of this, according to the transaction cost and complexity, capital specificity and performance assessment of the degree of difficulty of dimensional variables analysis identified pig green supply chain organization distribution; analysis of live pig green supply chain organization form distribution and the input variables (Relational Governance and contract fulfillment), output variables (food safety and stable prices), and then based on the food safety and price stability in the supply chain operation model and stability model, through the investigation and interview method, using structural equation, game theory, FVCA methods and tools for empirical research, puts forward the organization stability applicability countermeasures. Expected results will enrich the theory of supply chain management system, at the same time on the pork supply chain in China enterprises and relevant government departments have guiding significance.Around the pig supply chain operation mode, pork food safety and price stability, economic factors and social factors on the pig supply chain performance and other aspects of the problem, this article main research contents and results are as follows:(1) Operation mode live of pig supply chain:from asset special, trade's complexity and specificity of the product level to build three aspects of live pig supply chain mode of operation model, through the analysis of live pig supply chain mode of operation is divided into five types:market supply chain, loose supply chain, half close together model supply chain, close supply chain and the integration of supply chain; through domestic and foreign literatures and field survey, the reality of the pig supply chain operation mode summarized specifically divided into the following five types:vertical integration pig supply chain, prospective longitudinal integration pig supply chain, half close together model pig supply chain, supply chain and loose live pig market supply chain. In the domestic and foreign pig supply chain model based on the theory and practice of the pig industry in China, combined with the actual situation, this paper argues that China's future live pig supply chain mode: upstream longitudinal integration or prospective longitudinal integration (bibcock enterprise+farmer)+downstream processing horizontal integration (leading processing enterprises+logistics company+seller),is a kind of division of labor and cooperation alliance competition between interest groups, referred to as the above longitudinal below transverse group alliance pig supply chain.(2) Logistics and value flow model of Pig supply chain:This article analysis the theory model and practice of our country pork supply chain and value chain from a logically consistent angle. Especially the node analysis of pork supply chain and the value distribution analysis of value chain, etc. Firstly analyzes the concept model of pork supply in China, and further depicting the nodes of our pork supply chain and the contact of each other. at the same time, through the comparison with Vietnamese pork supply chain to analysis the characteristics and problems of our pork chain. Then analysis the composition of pork value chain in China and the distribution of each note, through the comparison with the United Sates and Vietnam to analysis the pork present situation and problems of the value chain. Meanwhile assumes immoral behavior exist to analysis the value distribution of the pig value chain and explore the key nodes and measures to the food safety. Finally summarized and from supply chain process reengineering, food quality supervision and policies regulations to give suggestions and opinions.(3)Research on Price Transmission Mechanism of Pork Supply Chain:This paper construct the price system structure of pork supply chain and closed-loop conduction path, Using the2001January to2011July of pork price, feed price, price, the price of corn, beans hectometer pigs price and CPI monthly data, analysis six types of data fluctuation of the overall trend, characteristics and cycle fluctuations, while stationary test and Johansen test, established the VAR model, using the impulse response function and variance decomposition of pork supply chain price system of mutual influence, finally using finite distributed lag model (FDL) analysis of pork supply chain price transmission mechanism, the results show that:(1) the price of pork supply chain system is a long-term equilibrium relationship;(2) pork supply chain price transmission mechanism is relatively smooth, four kinds of prices of production factors, the price of pork and CPI basically can smooth transmission, most prices between effectiveness and time delay;(3) a one-time production factor in piglets price volatility is relatively large, long-term investment of factor of production price is relatively smooth.(4)Research on Performance Evaluation System of Pig Supply Chain:This paper construct live pig supply chain based on theoretical study and practical research, then from the time and space two perspective and BSC to research the performance evaluation system,which based on the spatial perspective and BSC live pig supply chain performance evaluation index system composed of four level indicators (financial dimension, customer dimension, internal business process dimension and innovation and learning perspective) and27level two indexes, based on the perspective of time and BSC live pig supply chain performance evaluation index system is divided into the formation period, development period, the period of maturity and recession of four stages, with a total of32indexes. (5) The Effects of Relationship Governance and Contract Governance on Pig Supply Chain Performance:Transaction Cost and Social Exchange Theories Perspective:This paper use SEM to analysis the effects of relationship governance and contract governance on pig supply chain performance based on transaction cost and social exchange theories perspective, through to the enterprise field interviews, mailed questionnaires, telephone interviews and network quiz collected379effective samples data, using structural equation model (SEM) to verify the model fit and research hypothesis. The research results show that:A.The model with good fit, apply to the nodes of the pig supply chain.B.Relationship governance and contract governance at the same time to directly improve the supply chain performance.C.Asset specificity, behavior uncertainty, complexity, internal communication and perceived satisfaction through five antecedents of relationship management and contract management two indirectly affect live pig supply chain performance.This research has achieved some results, but there are some deficiencies, further and more realistic follow-up study.
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