An original equipment manufacturer (OEM) produces new products and often faces a dilemma when determining the level of interchangeability in its product design. The interchangeability is considered as a degree to which the product can be disassembled without force, and thus an increasing degree...

In this paper, we consider multiple manufacturers and a common retailer in a supply chain facing uncertain demand. Each manufacturer produces a different yet substitutable product sold through the common retailer, and a portion of the manufacturers sell their products through the direct channels...