Title: Supply chain inventory model with price-dependent consumption rate with ameliorating and deteriorating items and two levels of storage

Authors: S.R. Singh; Monika Vishnoi

Addresses: Department of Mathematics, D.N. (P.G.) College, Railway Road, Meerut C.C.S. University, Meerut, 250002, Uttar Pradesh, India ' Department of Mathematics, D.N. (P.G.) College, Railway Road, Meerut C.C.S. University, Meerut, 250002, Uttar Pradesh, India

Abstract: As the industrial environment becomes more competitive, supply chain management has become essential. The objective of this research is to develop a supply chain inventory model for deteriorating and ameliorating items and to derive an optimal joint total cost from an integrated perspective among the manufacturer and the retailer. Most Manufacturers/retailers make pricing decisions of their products at certain times of the year and these decisions affect demand. The demand rate is assumed to decrease as price for the product increases. In this paper, for excess stock, manufacturer's has two storage facilities in which one is the own warehouse (OW) and another is a rented warehouse (RW). The manufacturers store goods in OW before RW, but clear the stocks in RW before OW. Holding cost is linear increasing function of time. The model considered both ameliorating and deteriorating effects with two parameter Weibull distribution taking account of multiple deliveries. Shortages are permitted with partial backorder. Model is considered for a finite planning horizon. Numerical experiments together with sensitivity analysis are also illustrated.

Keywords: integrated models; variable holding cost; price dependent demand rate; two-warehouse model; partial backlogging; amelioration; deterioration; supply chain management; SCM; inventory modelling; ameliorating items; deteriorating items; storage levels; excess stock.

DOI: 10.1504/IJPM.2013.052466

International Journal of Procurement Management, 2013 Vol.6 No.2, pp.129 - 151

Published online: 30 Jan 2014 *

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