Main Article Content


The paper studies a periodic review inventory model with no shortages and different demand rates during pre- and post- deterioration periods . Deterioration of units start after a fixed time interval, and the deterioration rate is time dependent. The model determines the optimal reorder interval and the optimal order quantity so as to minimize the total cost per unit length of an inventory cycle. An extension of the model to include price discount has been further considered. Numerical examples are presented to illustrate the model and a sensitivity analysis is also reported.


Periodic review inventory model non-instantaneous deterioration time dependent deterioration.

Article Details

Author Biography

Manisha Pal, Department of Statistics University of Calcutta, Kolkata

Professor, Department of Statistics University of Calcutta, Kolkata
How to Cite
Samanta, A., & Pal, M. (2015). Periodic review inventory policy for non-instantaneous deteriorating items with time dependent deterioration rate. Pakistan Journal of Statistics and Operation Research, 11(3), 409-419.