Title: An EOQ model for deteriorating item with promotional effort and credit linked demand

Authors: Anindita Kundu; Partha Guchhait; Goutam Panigrahi; Manoranjan Maiti

Addresses: Department of Mathematics, NIT, Mahatma Gandhi Avenue, Durgapur-713 209, West Bengal, India ' Department of Mathematics, Dherua A.S. High School, Midnapore, Paschim-Medinipur-721102, West Bengal, India ' Department of Mathematics, NIT, Mahatma Gandhi Avenue, Durgapur-713 209, West Bengal, India ' Department of Mathematics, Vidyasagar University, Midnapore, Paschim-Medinipur-721102, West Bengal, India

Abstract: In the traditional supply chain models, it is observed that usually suppliers offer to the retailers a credit period and also the retailer to the customers to stimulate sales and reduce inventory. This practice of retailers increases the default risk of the percentage of customers not willing to pay back. In this paper, an inventory model has been developed under two levels of trade credit policy with customers' default risk consideration for a deteriorating item having a maximum lifetime. The supplier offers a partially permissible delay in payment per order and the retailer, in turn, provides a part of it to customers. Here, both demand and default risk are functions of the customer's trade credit period, whereas demand is also promotional effort sensitive. To mimic the changing market, the inventory costs are assumed to be imprecise. The models are illustrated numerically and some sensitivity analyses are presented. [Received: 13 January 2017; Revised: 14 September 2017; Revised: 10 June 2018; Accepted: 10 December 2018]

Keywords: EOQ model; two-level partial trade credit period; promotional effort; default risk; time-dependent deterioration; credit-sensitive demand; default risk; fuzzy inventory model; rough inventory model; infinite planning horizon; GRG technique; LINGO software.

DOI: 10.1504/EJIE.2019.100015

European Journal of Industrial Engineering, 2019 Vol.13 No.3, pp.368 - 399

Available online: 28 May 2019 *

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