*********************************
There is now a CONTENT FREEZE for Mercury while we switch to a new platform. It began on Friday, March 10 at 6pm and will end on Wednesday, March 15 at noon. No new content can be created during this time, but all material in the system as of the beginning of the freeze will be migrated to the new platform, including users and groups. Functionally the new site is identical to the old one. webteam@gatech.edu
*********************************
This paper is concerned with a periodic review inventory system with three delivery modes (fast, medium and slow) and demand forecast updates. At the beginning of each period, the inventory level and demand information are updated, and decisions on how much to order using each of the three delivery modes are made. Both finite and infinite horizon problems are treated. Objectives considered are those of discounted and average cost minimization. It is shown that in all cases, an optimal ordering policy is a modified state-dependent base-stock policy.
