Coordination of Production/Distribution Networks with Unbalanced Leadtimes

摘要: We investigate multiproduct, multilocation production/distribution networks with deterministic, stationary demands. Most research on such systems assumes zero leadtimes. Methods using fixed reorder intervals that are power-of-two multiples of a base planning period have proved to be very successful for systems. The same methods apply positive leadtimes, provided the leadtimes arebalanced in specific sense. explore general,unbalanced A key result is lower bound cost any feasible policy. Other results concern policy heuristics and their performance. For large class networks, we construct whose within 45% bound. general performance guarantee 1:02v(1+?), where ? number dependent network topology only. In general, best obtained by systematically reducing order derived from corresponding zero-leadtime system.