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Inventory decisions for deteriorating and ameliorating items with partial backlogging and time varying demand

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  • V.P. Praveen
  • Mavila Manoharan

Abstract

The observations from real life examples indicate that the consideration of ameliorating and deteriorating items is important in developing inventory models. This research paper deals with both these factors along with demand rate which is linearly time varying over a fixed planning time frame. The shortages are partially backlogged during the time frame. Here, amelioration rate is taken to follow two parameter Weibull distribution as these items increases with time and decreases due to death. In the first phase of time horizon, deterioration occurs and its rate increases with time. The model is developed under these situations. Using numerical examples and sensitivity analysis, the model is illustrated and verified the effect of changes of model parameter on the optimal solutions.

Suggested Citation

  • V.P. Praveen & Mavila Manoharan, 2026. "Inventory decisions for deteriorating and ameliorating items with partial backlogging and time varying demand," International Journal of Operational Research, Inderscience Enterprises Ltd, vol. 56(2), pages 172-186.
    • Handle: RePEc:ids:ijores:v:56:y:2026:i:2:p:172-186
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