When a firm faces an uncertain demand, it is common to procure supply using some type of option in addition to spot purchases. A typical version of this problem involves capacity being purchased in advance, with a separate payment made that applies only to the part of the capacity that is...

This paper studies a supplier competition model in situations with flexible resources where suppliers face diseconomies of scale. Under such a situation, it is generally believed that a buyer may split an order across different suppliers; and even if the buyer chooses only one supplier, the...

Driven by increasing costs in the traditionally-regarded low-cost manufacturing bases (e.g., China), many firms have started to outsource their production to the regions of even lower costs (e.g., Southeast Asia). However, a new environment may involve higher cost uncertainty and severer...

This paper studies contract design between a retailer and two or more competing manufacturers who supply substitutable products to the retailer for sales in a consumer market. We consider a setting in which the same contracts are used in each period of a planning horizon. We first show that it...