Order Level Inventory Models for Deteriorating SeasonableFashionable Products with Time Dependent Demand and Shortages

الملخص EN

An order level inventory model for seasonable/fashionable products subject to a period of increasing demand followed by a period of level demand and then by a period of decreasing demand rate (three branches ramp type demand rate) is considered.

The unsatisfied demand is partially backlogged with a time dependent backlogging rate.

In addition, the product deteriorates with a time dependent, namely, Weibull, deterioration rate.

The model is studied under the following different replenishment policies: (a) starting with no shortages and (b) starting with shortages.

The optimal replenishment policy for the model is derived for both the above mentioned policies.