Title: An inventory model for deteriorating items with expiry date and time varying holding cost

Authors: Seema Sharma; Sanjay Singh; S.R. Singh

Addresses: Department of Mathematics, Gurukul Kangri University, Hardwar, Uttarakhand, 249404, India ' Department of Mathematics, Gurukul Kangri University, Hardwar, Uttarakhand, 249404, India ' Department of Mathematics, CCS University, Meerut, Uttar Pradesh, 250001, India

Abstract: In this paper, an economic order quantity model for items which deteriorate and expire with time has been developed. The holding cost has been assumed to be a linear function of time, whereas demand has been considered as a function of expiry date and selling price. Shortages are allowed and partially backlogged. The model so developed has been discussed for two cases of partial backlogging: 1) backlogging rate is taken to be constant; 2) backlogging rate depends upon waiting time. A numerical example given here illustrates each case. Finally, sensitivity analysis is carried out to analyse the behaviour of the model.

Keywords: deterioration; expiry items; holding cost; partial backlogging.

DOI: 10.1504/IJPM.2018.094357

International Journal of Procurement Management, 2018 Vol.11 No.5, pp.650 - 666

Received: 28 Feb 2017
Accepted: 10 Sep 2017
Published online: 30 Aug 2018 *

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