期刊
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH
卷 126, 期 3, 页码 603-613出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0377-2217(99)00314-8
关键词
inventory; stochastic processes
Almost 40 years ago, H. Scarf (The optimality of (s,S) policies in dynamic inventory problems, in: K. Arrow, S. Karlin, P. Suppes (Eds.), Mathematical Models in the Social Sciences, Stanford University Press, Stanford, 1960) established the optimal is, S) policy structure for the periodic review inventory problem with fixed ordering costs and no capacity constraint. Since then, the capacitated problem has resisted characterization. In the present paper we partially bridge this gap; using a generalization of Scarfs K-convexity we show that the optimal capacitated policy has an (s, S)like structure. To do so we divide the parameter space into four regions: In two of these regions the optimal policy is completely specified, while in the other two, it is partially specified. We complement these findings with a computational study. This study suggests that a still simpler optimal policy structure exists. (C) 2000 Elsevier Science B,V. All rights reserved.
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