A methodology for stochastic inventory models based on a zero‐adjusted Birnbaum‐Saunders distribution. (26th June 2015)

• Record Type: Journal Article
• Authors: Leiva, Víctor; Santos‐Neto, Manoel; Cysneiros, Francisco José A.; Barros, Michelli
• Is Part Of: Applied stochastic models in business and industry. Volume 32:Number 1(2016:Jan./Feb.)
• Page Start: 74
• Page End: 89
• Publication Date: 2015-06-26
• Subjects: demand data -- financial indicators -- maximum likelihood method -- mixture distributions -- Monte Carlo simulation -- R software; Stochastic analysis -- Periodicals; Stochastic processes -- Periodicals; Business mathematics -- Periodicals; Finance -- Mathematical models -- Periodicals; Industrial management -- Mathematical models -- Periodicals; 338.00151923
• DOI: 10.1002/asmb.2124
• Languages: English
• ISSNs: 1524-1904

Abstract

Abstract : The Birnbaum–Saunders (BS) distribution is receiving considerable attention. We propose a methodology for inventory logistics that allows demand data with zeros to be modeled by means of a new discrete–continuous mixture distribution, which is constructed by using a probability mass at zero and a continuous component related to the BS distribution. We obtain some properties of the new mixture distribution and conduct a simulation study to evaluate the performance of the estimators of its parameters. The methodology for stochastic inventory models considers also financial indicators. We illustrate the proposed methodology with two real‐world demand data sets. It shows its potential, highlighting the convenience of using it by improving the contribution margins of a Chilean food industry. Copyright © 2015 John Wiley & Sons, Ltd.