Dynamic Pricing and Inventory Management with Dual Suppliers of Different Lead Times and Disruption Risks

Dynamic Pricing and Inventory Management with Dual Suppliers of Different Lead Times and Disruption Risks

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Article ID: iaor201524671
Volume: 23
Issue: 12
Start Page Number: 2058
End Page Number: 2074
Publication Date: Dec 2014
Journal: Production and Operations Management
Authors: , ,
Keywords: management, inventory, simulation, combinatorial optimization
Abstract:

It is common for a firm to make use of multiple suppliers of different delivery lead times, reliabilities, and costs. In this study, we are concerned with the joint pricing and inventory control problem for such a firm that has a quick‐response supplier and a regular supplier that both suffer random disruptions, and faces price‐sensitive random demands. We aim at characterizing the optimal ordering and pricing policies in each period over a planning horizon, and analyzing the impacts of supply source diversification. We show that, when both suppliers are unreliable, the optimal inventory policy in each period is a reorder point policy and the optimal price is decreasing in the starting inventory level in that period. In addition, we show that having supply source diversification or higher supplier reliability increases the firm's optimal profit and lowers the optimal selling price. We also demonstrate that, with the selling price as a decision, a supplier may receive even more orders from the firm after an additional supplier is introduced. For the special case where the quick‐response supplier is perfectly reliable, we further show that the optimal inventory policy is of a base‐stock type and the optimal pricing policy is a list‐price policy with markdowns.

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