Supply Chain Coordination Theory Based On Information

In this doctoral dissertation, we consider the supply chains of the seasonal products with high uncertainty of demand and long order lead time and short sale period. By means of modeling, three kinds of information management problem in supply chain management are analyzed: information sharing and coordination problem; supply chain coordination strategy design with information updating; coordination problem based on competitor's product information. The coordination mechanism of supply chain is improving or maximizing the whole performance of supply chain. Five problems were analyzed, see in the following:1). Research on investigating valuation and limitation of information sharing in seasonal supply chain. Uncertain delivery times occur due to a number of different causes, including capacity constrains, scheduling difficulties, uncertain material supplies and production processes problems. Suppliers of seasonal products aim to deliver the products before the start of the selling period, and compensate to buyers if the delivery is late. If supplier's private information about delivery lead-time is shared in the supply chain, then retailer can adjust her order quantity to decrease the sale lost. The supply chain performance would be improved with information sharing. We point out that information sharing can increase the probability of performance of supply chain when the uncertainty of delivery time is larger. But it isn't sure that supply chain performance improving with information sharing. There exist valuation and limitation of information sharing in the supply chain with uncertainty of delivery time.2). Research on the valuation of coordination strategy in seasonal supply chain. When we introduce some kinds of coordination contract to the seasonal products supply chain with uncertainty in delivery lead time, the optimal supply chain performance would arrive. This kind of coordination contract can allocate the supply chain profits within its members and these actions are self-executives. We point out that there exist supply chain contracts which can coordination this kind of supply chain with delivery uncertainty. The coordination contracts can efficiently get rid of the limits of information sharing and improve the performance of supply chain management. When the degree of uncertainty of delivery lead time is larger, the values of coordination contracts are less. When the degree of uncertainty of market demand is larger, the valuesof coordination contracts are greater.3). Research on coordination contract designing in information updating supply chain. With long lead-time, the wide impact of order decision is very inaccurate. Quick Response strategy consists of dealing with this problem and enables orders to be placed closed to the start of the selling season. Retailers can adjust their order quality after gathered more and better demand information. But quick response strategy may not always make both manufacturers and retailer's benefits better. Under low service levels QR improves both retailer and manufacturer profits, but we would not observe such lower service levels in practice. The original propose of this paper is to investigate the return polices in the supply chain system with QR strategy. Under some condition, return policies will make QR system Pareto improving.4). Research on coordination of market information and ordering time in supply chain. In the seasonal products supply chain, supplier frequently encourage retailer to order early, for more longer order lead time lower production and logistics costs. The retailer must trade off lower procurement costs against the expense of making ordering decisions with worse information about demand. A model is developed that quantifies the benefits to the supply chain with early order strategies. We analyzed the solving method to get optimal order quantity and order time and the valuation of early order strategy in seasonal product supply chain.5). Research on supply chain coordination with competitors' product information. In a multi-product competition market, the retailers of products at first must know the state and the market shares of the products in the markets, then decide the quantities of product through analysis the market and the revenue to gain the maximum profits. It is the fundamental problem in the market inventory management that how to gain the optimal order quantity. After introducing the concepts of product characterization description and customer general cost, we give a method of analyzing market share and some mathematical properties of market share. Then we give the sensitive analysis and economic explanations of retailers' optimal ordering quantity, optimal expected profits and total profit in the market. And at last we consider the coordination mechanism of designing the production characterization and pricing in the supply chain with information of competitor's products information.The development of information technology gives the opportunity of increasingthe efficiency of corporation and incurring the transformation of theory of corporation management. Supply chain management becomes an innovative management module and theory of management. Because the members of supply chain always belong to different corporations, the coordination or collaboration of supply chain is an important module of improving of competition of corporations. The coordination theory of supply chain becomes to a mostly important theory. In this dissertation, we considered the information management of supply chain with the supply chain coordination management theory.