Title: Inventory model for non-instantaneous deteriorating item with random pre-deterioration period

Authors: Manisha Pal; Anwesha Samanta

Addresses: Department of Statistics, University of Calcutta, 35 Ballygunge Circular Road, Kolkata 700019, India ' Department of Statistics, University of Calcutta, 35 Ballygunge Circular Road, Kolkata 700019, India

Abstract: The paper studies an inventory model for non-instantaneous deteriorating item where the deterioration of the item is initiated at a random time point. It is assumed that no shortages are allowed and demand occurs uniformly but at different rates during pre- and post-deterioration periods. The optimum order quantity and reorder intervals are determined so as to minimise the total expected cost per unit length of an inventory cycle. Numerical examples are cited and a sensitivity analysis is carried out to study the effect of model parameters on the optimum policy.

Keywords: inventory control; periodic review model; non-instantaneous deteriorating item; random pre-deterioration period; uniform demand rate.

DOI: 10.1504/IJIR.2018.092350

International Journal of Inventory Research, 2018 Vol.5 No.1, pp.3 - 12

Received: 23 May 2017
Accepted: 29 Jun 2017
Published online: 16 Jun 2018 *