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Supply Chain 2012 Part 12

Tham khảo tài liệu 'supply chain 2012 part 12', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Quantitative Models for Centralised Supply Chain Coordination 321 Multiple Items Kohli Park 1994 examined joint ordering policy in a vendor-buyer system as a method for reducing the transactions cost for multiple products sold by a seller to a homogeneous group of buyers. They found that efficient joint lot-sizes are independent of prices and are supported by a range of average-unit prices that permit every possible allocation of the transactions-cost saving between the buyer and the seller. Kohli Park 1994 also found that product bundling supports efficient joint orders across products just as a quantity discount supports efficient transactions for a single product. Chen Chen 2005a proposed both centralized and decentralized decision policies to analyze the interplay and investigate the joint effects of two-echelon coordination and multiproduct replenishment on reduction of total costs. The total joint cost was given as T lA i.T - A t i T T i 1L 1 2 2 D2 . Pi 4 A A y T 1 i 1 2 av i T hv iDi ar i -AA. - T 2 Pi AịT X 7 UihriT 2 A- -1D Where T is the common cycle T 0 Di the demand rate of finished item i Pi the production rate of finished item i produced by the vendor Pi Di hb i is the inventory holding cost of finished item i per unit time for the buyer hv i is the inventory holding cost of finished item i per unit time for the vendor hr i the inventory holding cost of raw material for finished item i per unit time for the vendor ab i the minor setup cost for adding finished item i into the order for the buyer av i the minor setup cost for adding finished item i into the production schedule for the vendor ar i the ordering cost of raw material for finished item i per lot for the vendor ui usage rate of raw material for the end item i produced by the manufacturer and k is the total number of items. The optimal integer multiple of the common replenishment cycle for the raw material the optimal common replenishment cycle and the optimal order quantity for each item are