供應商提供一段促銷活動期零售商之最適訂貨策略

Optimal Ordering Policy for Retailer when the Promotion Lasts a Finite Time Interval by Supplier

林文豐(Wen-Feng Lin)

《中華科技大學學報》 60期 (2014/10) Pp. 79-93

摘要

本文依據供應商是否能透過銷售時點情報系統掌控零售商之銷售資料來探討零售商之訂貨策略，文中所討論零售商販售商品給顧客的需求率與賣給顧客的售價有關。模型一探討供應商於一段期間內提供降價促銷活動並藉銷售時點情報系統得知零售商的銷售資訊，因此零售商於降價促銷活動結束時不能以促銷價再次額外訂購。模型二探討供應商於一段期間內提供降價促銷活動，若供應商無法透過銷售時點情報系統做監控，零售商會於降價促銷活動結束前再以促銷價額外訂購一次貨量。有別於文獻中在判斷訂貨次數的問題時，只能於大約的區域範圍內做比較才能找出最適的訂貨次數，本文提出演算法並提供封閉解方法以快速處理含整數運算子之問題。

關鍵字

存貨 ； 經濟訂購量 ； 銷售時點情報系統 ； 暫時降價

並列摘要

In this article, we deal with two inventory models which the product annual demand are functions of selling price. In the first model, using point-of-sale technology, the supplier can monitor the selling price and quantity sold by retail. The retailer cannot additionally purchase a lot before the end of the promotion. Contrarily, the second model doesn't use point-of-sale technology to monitor retailer's activity. The retailer is free to order a lot just before the end of the promotion. Different from early papers, the optimal ordering number can be found only in some regions and compared to each other. We present algorithms and closed-form solutions to find maximum incremental profit and optimal ordering number when integer operator involved.