An impulse control problem of a production model with interruptions to follow stochastic demand

An impulse control problem of a production model with interruptions to follow stochastic demand

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Article ID: iaor20021056
Country: Netherlands
Volume: 132
Issue: 1
Start Page Number: 123
End Page Number: 145
Publication Date: Jul 2001
Journal: European Journal of Operational Research
Authors: ,
Keywords: production, markov processes
Abstract:

The paper deals with the stochastic optimal intervention problem which arises in a production & storage system involving identical items. The requests for items arrive at random and the production of an item can be interrupted during production to meet the corresponding demand. The operational costs considered are due to the stock/backlog, running costs and set-up costs associated with interruptions and re-initializations. The process presents distinct behaviour on each of two disjoint identical subsets of the state space, and the state process can only be transferred from one subset to the other by interventions associated with interruptions/re-initializations. A characterization is given in terms of piecewise deterministic Markov process, which explores the aforementioned structure, and a method of solution with assured convergence, that does not require any special initialization, is provided. Additionally, we demonstrate that under conditions on the data, the optimal policy is to produce the item completely in a certain region of the state space of low stock level.

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