本研究以一家供應商和一家B2C 網購平台所組成的二階供應鏈為例，假設網購 平台的存貨管理實施供應商代管存貨（VMI）制度並以再訂購點法進行補貨，且以供 應商和網購平台均分利潤為前提下的供應鏈通路總利潤最大或供應商總利潤最大為目 標，並藉實際銷售資料所建立的價格與需求對應函數來做商品定價與需求產生之依 據，最後透過模擬最佳化方法求解最佳的營收抽成比例、商品定價和再訂購點。研 究結果顯示，在均分利潤的前提下，集中式通路營收分享模式不管是否實施VMI 制 度，皆可受益於商品售價和營收抽成比例的協商而獲得比分散式通路高的利潤；且在 兩種通路中實施VMI 制度，確實可以透過以再訂購點的補貨機制，維持有效的庫存 量、消除缺貨的發生，提高通路總利潤。

This study examines a two-echelon supply chain formed by a vendor, an online shopping platform, and consumers. Optimal commission ratios, commodity prices, and reorder points are determined for different simulation scenarios and centralized and decentralized channels under the conditions of a vendor management inventory (VMI) mechanism and based on the goal of a maximization of total profits of supply chain channels or a maximization of total profits of vendors with the constraint of equally shared profits through simulation optimization methods. The research results show that coordinated determination of commission ratios and commodity prices by online shopping platforms and vendors with the constraint of equally shared profits generates higher profits than unilateral decisions and enhances the competitiveness of commodity sales. Moreover, the setting of reorder points for vendor managed inventories can effectively reduce out-ofstock incidences and increase total profits of channels.