Abstract #301594

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JSM 2002 Abstract #301594
Activity Number: 356
Type: Contributed
Date/Time: Wednesday, August 14, 2002 : 2:00 PM to 3:50 PM
Sponsor: Business & Economics Statistics Section*
Abstract - #301594
Title: On Continuous Review Stock Control With Multiple Suppliers and Positive Lead Times
Author(s): Yogendra Chaubey*+ and Fassil Nebebe and Suresh Goyal
Affiliation(s): Concordia University and Concordia University and Concordia University
Address: 7141 Sherbrooke St. W., Montreal, Quebec, H4B 1R6, CANADA
Keywords: Reorder Level ; Autocorrelated demand
Abstract:

This paper develops formulae for the moments of the effective lead-time in the context of multi-sourcing when the individual lead times have positive support unlike the normal distribution. A formula for the distribution of effective lead-time provides easy computational method for the mean and variance as well as any other moments. We also provide exact formulae for the mean and variance of the effective lead-time in the case of gamma-distributed individual lead times. Some analytical results are also derived to shed some light on the performance of mean and variance under this policy. The numerical computations are illustrated using the Gamma distribution for individual lead times.

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Revised March 2002