Paper Title
An Inventory Model for Deteriorating Items with Exponential Demand, Time Varying Holding Cost and Permissible Delay in Payments

Abstract
In this paper an inventory model is developed for weibull deteriorating items when the demand is exponential. It is assumed that the supplier provides some credit period to settle the account and beyond the credit period he will charge certain rate of interest on the outstanding amount. Linear holding cost is considered and the deterioration cost is taken as the difference of purchasing price and salvage value. A numerical example is provided and sensitivity analysis made to check the effect of various parameters on the inventory system. Keywords - Deterioration, Weibull Distribution, Permissible Delay in Payment.