Analysis On Vertical Relations In Pig Industry Chain Based On Quality And Safety

China is a powerful country with pig production and consumption. By the development of social economy and the improvement of living standards, the quality safety of the pork gradually becomes the important factors influencing the residents’consumption. However, Pork quality safety incidents outbreak frequently and China’s pork products is hard to enter developed countries’market, which heralds that China pork’s security is in serious hidden danger. The underlying reason is that this Industrial chain has the information asymmetry between different interest subjects becauseChinese small-scale pig farms (households) occupy the absolute position.Strengthen the industrial chain’s main bodies’tight vertical relations can effectively reduce the information asymmetry between the main body so that it becomes an important means of countries to strengthen food quality and safety. Using the experience of developed countries, strengthen the quality and safety of live pigs needs industrial chain’s core subject as a leading role. In the pig industry chain, The degree of concentration and scale of slaughter processing enterprises is relatively high and has a tendency to further increase, so slaughter processing enterprises will surely is the core of pig industry chain in China. Given the slaughter processing enterprises occupy the core position of the pig industry chain and the basis position of pig farms (households) for live pigs’quality and safety control. The key research for the vertical relations between pig slaughter processing enterprises and pig farms (households) has important theoretical and realistic significance.Combing the information asymmetry theory, quality economics theory, the theory of new institutional economics and the theory of planned behavior, this study built logic framework of research on vertical relations in pig industry chain on the basis of quality and safety. Then the vertical relations between slaughter processing enterprises and pig farms (households) were mainly studied using the field investigation data in Beijing and combining qualitative and quantitative methods. Specific research contents include:(l) Analysis of mechanisms of different forms of vertical coordination which influencing the quality and safety of live pigs;(2) Analysis of present situation of pig industry development in Beijing, the development status of vertical relations during production and marketing and the current situation of safety production for pig farms (households);(3) Analysis of slaughter processing enterprises’choices among different vertical coordination forms, the condition for enterprises in terms of controlling the quality and safety of pigs, the influence factors of the vertical coordination behavior of pig farms (households), and the influence on quality control behavior of pig farms (households) from different forms of vertical coordination;(4) Analysis of ways to optimize the vertical relations between the slaughter processing enterprises and other main bodies on the industry chain based on the perspective of quality supervision and the whole industry chain;(5) Putting forward policy suggestions for China to improve the quality and safety level of pigs from the perspectives of vertical relations in industrial chain. The main conclusions of this study are as follows:(1) The pig industry chain in China mainly focuses on through middlemen market transaction form;(2)Vertical relations significantly affect the pig quality safety controlling of the bodies in the industrial chain;(3) Slaughtering processing enterprises play an important role in the aspect of controlling of the quality and safety level of live pigs;(4) the expansion of breeding is conducive to improve the quality and safety level of live pigs but small pig farms (households) proportion on the high side;(5) Normative cooperative can supply effectively quality and safety pigs.Characteristics and innovation of this study is as follows:Emphasizes through economic incentives to ensure the quality and safety of live pigs, and overcomes the single objective problem with focusing on the quality and safety or economic benefit in previous studies; System relations the longitudinal relationship between Slaughter and processing enterprise and pig farm (household) basing on the national conditions that small pig farms (households) dominated and the status that pork quality and safety is widely noted; From the perspective of improving the efficiency of government’s supervision for the pig quality and safety, it optimizes the longitudinal relationship between the slaughtering processing enterprises and other subject in this industrial chain.