In this paper, we considered a deterministic inventory model with time-dependent demand and time-varying holding cost where deterioration is time proportional. The model considered here allows for shortages, and the demand is partially backlogged. The model is solved analytically by minimizing...

This paper consider the problem of finding optimal critical levels for an inventory system for multiitem with multiple demand classes, Poisson demand process, lost sales and ample supply. The ordering policy is assumed to be the (S -1, S) type i.e. replacement item is ordered as soon as a unit...