An ordering policy for deteriorating items with price-dependent iso-elastic demand under permissible delay in payments and price inflation

Puspita Mahata, Gour Chandra Mahata and Avik Mukherjee

Mathematical and Computer Modelling of Dynamical Systems, 2019, vol. 25, issue 6, 575-601

Abstract: This paper considers the problem of dynamic decision-making for an inventory model for deteriorating items under price inflation and permissible delay in payment. In this paper, we adopt an iso-elastic and selling price dependent demand function to model the finite time horizon inventory for deteriorating items. The stocks deteriorate physically at a constant fraction of the on-hand inventory. The objective of this paper is to determine the optimal retail price, number of replenishments, and the cycle time under two different credit periods so that the net profit is maximized. We discuss the optimization properties and develop an algorithm for solving the problem based on dynamic programming techniques. Numerical examples are presented to illustrate the validity of the optimal control policy, and sensitivity analysis on major parameters is performed to provide more managerial insights into deteriorating items.

Date: 2019
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DOI: 10.1080/13873954.2019.1677724

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