A comparison of outbound dispatch policies for integrated inventory and transportation decisions

A comparison of outbound dispatch policies for integrated inventory and transportation decisions

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Article ID: iaor2007559
Country: Netherlands
Volume: 171
Issue: 3
Start Page Number: 1094
End Page Number: 1112
Publication Date: Jun 2006
Journal: European Journal of Operational Research
Authors: , ,
Abstract:

This paper investigates the impact of alternative outbound dispatch policies on integrated stock replenishment and transportation decisions. The logistics literature reports that two different types of such policies are popular in current practice. These are time-based and quantity-based dispatch policies. Considering the case of stochastic demand, the paper presents analytical and numerical results showing that the cost savings obtained through quantity-based policies can be substantial. However, under a quantity-based policy, a specific delivery time cannot be quoted when the customer places an order. Hence, the paper also investigates the cost and customer waiting time implications of hybrid policies and demonstrates that hybrid policies are superior to time-based policies in terms of the resulting costs. Furthermore, although hybrid policies are not superior to quantity-based policies in terms of the resulting costs, they are superior in terms of a service measure which is quantified by the long-run average cumulative waiting time.

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