Price Discount and Stochastic Initial Inventory in the Newsboy Problem

Document Type : Research Paper


1 1Dept. of Mech. and Ind. Eng. University of Illinois at Chicago, Chicago, IL, 60607, USA

2 Dept. of Ind. Eng. Sharif University of Technology, Tehran, Iran

3 Dept. of Mech. and Ind. Eng. University of Illinois at Chicago, Chicago, IL, 60607, USA


Many extension of the newsboy problem have been solved in the literature. One of those extensions solves a newsboy problem with stochastic initial inventory, earlier extensions have focused on quantity discounts offered by suppliers. An important practical extension would address a combination of the two pervious extensions. In this paper we consider a newsboy problem in which the suppliers offer quantity discount and the initial inventory at the beginning of the period is a random variable. We obtain the optimal value of the order quantity which maximizes the total profit and then present the results for some practical distributions of both random variables, demand and initial inventory.


Main Subjects

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Volume 1, Issue 2 - Serial Number 2
September 2007
Pages 130-138
  • Receive Date: 23 October 2006
  • Revise Date: 21 March 2007
  • Accept Date: 27 August 2007
  • First Publish Date: 01 September 2007