Research On Joint Purchasing Of Auto Parts

At present, there is a very furious competition in auto industry, auto manufacturers'profits are also sliding gradually. So, it deserves us making a brown study on how to reduce the cost effectively and improve profit quickly to help auto manufacturer make an indefectible station in competition. In auto line, purchasing cost of auto parts occupies about 60% of the total cost in vehicle manufacturing. Therefore, it is indispensable to study on how to reduce the cost of auto parts purchasing. Joint purchasing can reduce purchasing cost effectively by using scale-benefit. This paper focuses on the application of joint purchasing in auto parts as follows:(1) On the base of defining conception of joint purchasing and expatiating function and model of joint purchasing, the paper summarizes the conditions of executing joint purchasing macroscopically and microcosmically. Then we make a deep analysis of feasibility of joint purchasing in parts purchasing of auto industry. Through the analysis of the characteristics and the trend of auto parts purchasing, the paper makes a conclusion that the joint purchasing is becoming the future trend. It is demonstrated that the joint purchasing for auto parts is feasible through comparing the conditions required between auto industry and joint purchasing.(2) It designs an operational model of auto parts joint purchasing. Through the analysis of the classification of automobile components, we obtained that some automobile parts fit for joint purchasing. We determine the joint purchasing scope and choose cooperative partners in the light of the auto parts which needed to purchase with joint purchasing. The paper formulates the vehicle produce enterprise purchasing order process; through unite orders, then executing joint purchase order. At last, we track and manage the implement situation of joint purchasing. It designs the auto parts joint purchasing operate process. The paper uses the performance gap analysis to evaluate the effects of execution of the joint purchasing. At last, it demonstrated that joint purchasing is useful through a simple analysis of an example of joint purchasing in passenger car.(3) The paper constructs value index system of cooperate partners. It adopts TOPSIS method based on entropy to select alliance member and uses synthetic select method to choose auto parts supplier. In order to make a sensible benefit assignment for alliance members, we use a method which is called synthetic factors modify that based on Shapley.