Just-In-Time purchasing: Single or multiple sourcing?

Off-Line and User-Oriented Approach for Supplier Selection in Dynamic Environment: A Case Study in the Healthcare Services

“…The literature also offers many mathematical programming models, including linear programming [14], MIP (mixed integer programming) [15], non-linear programming [16], MOP (multi-objective programming) [17], and AHP models [18].…”

Decision making of sourcing and order allocation with price discounts

“…However, the model did not include supplier capacity constraints and only a single objective was used. Hong and Hayya [27] focused on single and multiple sourcing. They formulated and solved a mathematical programming problem to obtain the optimal selection of suppliers and the size of split orders for multiple sourcing; and provided a procedure that yields the optimal number of deliveries for single sourcing.…”

Coordinated decisions for substitutable products in a common retailer supply chain

“…Efforts have been made in the development of coordination mechanisms, aiming to allow a decentralized supply chain to perform as effectively as a centralized one does by aligning chain members' objectives with a chainwide objective (Thomas and Griffin, 1996). Efforts have also been made in exploring sourcing strategies in a decentralized supply chain, as multiple sourcing is not uncommon in various industrial sectors (Agrawal et al, 2002;Chiang and Benton, 1994;Hong and Hayya, 1992;Treleven and Scheikhart, 1988), and in analyzing the dynamics of interaction among chain members (Cachon and Zipkin, 1999;Leng and Parlar, 2005;Moses and Seshadri, 2000). This paper adds to these growing efforts of improving supply chain effectiveness by analyzing a two-supplier supply chain in which the suppliers with capacity uncertainties sell their differential but substitutable products through a common retailer facing price-sensitive random demand of these two products.…”