marketing process, and a qualitative and quantitative analysis on the implications for the transportation and inventory costs …

Whenever demand for a single item can be categorized into classes of different priority, an inventory rationing policy …-called critical level policy is applied to ration the inventory among the two demand classes. With this policy, low--priority demand … is rejected in anticipation of future high--priority demand whenever the inventory level is at or below a prespecified …

In this chapter we discuss inventory systems where several demand classes may be distinguished. In particular, we focus … on single-location inventory systems and we analyse the use of a so-called critical level policy. With this policy some … inventory is reserved for high-priority demand. A number of practical examples where several demand classes naturally arise are …

In most multi-item inventory systems, the ordering costs consist of a major cost and a minor cost for each item … included. Applying for every individual item a cyclic inventory policy, where the cycle length is a multiple of some basic … discussed in this paper. It is shown that this algorithm can be used for deterministic multi-item inventory problems, with …

) lost sales inventory model with multiple demand classes. Our main result is that we establish guaranteed optimality for two …