Title: Two echelon supply chain model for deteriorating items with effective investment in preservation technology

Authors: Shilpy Tayal; S.R. Singh; Rajendra Sharma; Anand Chauhan

Addresses: Department of Mathematics, Graphic Era University, 566/6 Bell Road, Clementown, Dehradun, India ' Department of Mathematics, D.N.(P.G.) College, Meerut, India ' Department of Mathematics, Graphic Era University, 566/6 Bell Road, Clementown, Dehradun, India ' Department of Mathematics, Graphic Era University, 566/6 Bell Road, Clementown, Dehradun, India

Abstract: The objective of this study is to develop a model for a two echelon supply chain, in which retailers' demand is seasonal with expiration date and he invests on the preservation technology to reduce the rate of product deterioration. This paper examines consumers' response to expiration dates for grocery store perishable products. We develop a conceptual framework that captures the frequency with which consumers check expiration dates and their willingness to pay for a perishable over its shelf-life. A solution procedure is presented to determine an optimal replenishment cycle, shortage period and preservation technology cost such that the net profit for the supply chain is maximised. A numerical example and sensitivity analysis are given to illustrate the model.

Keywords: two echelon supply chains; modelling; deteriorating items; preservation technology; expiry dates; inflation; seasonal pattern demand; uncertain lead times; seasonal demands; grocery stores; perishable goods; willingness to pay; sell-by dates; shelf life; optimal replenishment cycle; supply chain management; SCM.

DOI: 10.1504/IJMOR.2014.057854

International Journal of Mathematics in Operational Research, 2014 Vol.6 No.1, pp.84 - 105

Received: 24 Aug 2012
Accepted: 17 Nov 2012
Published online: 28 Jun 2014 *

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