Optimization of Stock Management for a Supply Chain Network with Information Sharing

資訊流分享下最佳化供應鏈存貨管理

對於一供應鏈網路而言，它包涵了三個部分：供應商、庫存商及顧客。供應鏈網路下的資訊流分享，在已過的數年間，早已成為多方面探討的主要話題。在本篇文章中，我們將提出一套以最佳化分析為基礎的數學模式，針對在資訊流分享下的存貨分配，進行在庫存商間的最佳化存貨管理及在顧客需求上的最佳化配送。並據此最佳化模式所推導的最佳化條件，發展相關演算方法，同時進行多方面的模擬測試。本文將引用由八十九年度經濟部產業電子化學界研究推廣計畫（89-EC-2-A-14-0314）下，零組件應用實例分析中的雙階層供應鏈，進行當資訊流分享時，其對於供應鏈在存貨管理上所可能產生的影響及衝擊。

For a supply chain network, it includes the suppliers, warehouses and customers. The value of information sharing in a supply chain network has been discussed over a variety of aspects. In this paper, we present an optimized stock allocation and distribution policy of the stock levels at warehouses and the product flows for customers in a supply chain network with information sharing. The objective for this supply chain network is to pursue total cost minimization. An optimization of mathematical programme for the stock distribution in the supply chain network is proposed. The development of algorithms based on the minimum cost flows is established. Empirica l studies for the comparison of the values of information sharing and non-information sharing in a two-level supply chain have been done in terms of the bullwhip effects and order up to inventory by real sales data over consecutive four years, which has been supported by project 89-EC-2-A-14-0314. Experiments for a three-echelon structure have been conducted on two test networks and good results have been found.