Research on an Inventory Control Model with Supply Disruptions
供应中断情况下的库存控制模型研究

We consider an infinite-horizon,periodic-review inventory model in a capacitated assemble to order system in which the products are assembled from some components,and the leadtime probability distribution is dependent on the state of a completely observed,exogenous Markov chain.Order costs are linear,and unsatisfied demand is fully backlogged.In this paper,the author presents a procedure for determining the long-run average cost for a given state-dependent basestock policy.Then these results are applied to analyze the effect of a possible major supply chain disruption on an enterprise's inventory and longrun average cost.Our research shown that the base inventory with constant state is optimal.And the length of components supply disruption has the more effect on the level of components inventory than the probability of components supply disruption.The result can provide some reference for the cooperation between business and government in disruption management and contingency planning.