We consider a multi-item buyer's make versus buy decision. The buyer sells two substitutable products with uncertain demand. Each product requires a different item, which the buyer procures from two separate suppliers (one for each item) who offer quantity-payment contracts under asymmetric...

Joint purchasing (JP) agreements are negotiated amongst competing OEMs to enable them to obtain rebates from their supplier(s). The iterative interactions involved in reaching such JP agreements result in disclosure of private information that the OEMs might prefer to keep private by procuring...

This paper analyzes optimal auction design when delivery of supply is uncertain. We consider a buyer facing multiple potential suppliers, each having an associated (exogenous) reliability that quantifies its risk of supply failure. We design optimal mechanisms that depend on the buyer's level of...

To stay abreast of current supply-market pricing, it is common for procurement managers to frequently organize auctions among a pool of qualified suppliers (the supply base). Sole awards can alienate losing suppliers and cause them to defect from the supply base. To maintain the supply base and...

In this paper we study two reverse auction formats in a single period setting, the sealed pay-as-bid and the open format, when suppliers are capacity constrained. In the pay-as-bid format we characterize the asymmetric bidding equilibrium for the case of two suppliers with uniformly distributed...

Firms mitigate uncertainty in demand and supply by carrying safety stock, planning for excess capacity and diversifying supply sources. In this study, we provide a framework to jointly optimize these three levers in a periodic review infinite horizon setting, and in particular we examine how one...

We investigate procurement in a setting in which the buyer is bound by sourcing rules. Sourcing rules may limit the minimum and maximum amounts of business that can be awarded to a single supplier or dictate the minimum number of suppliers who are awarded business, thus necessitating split...

In dynamic markets where cost of components changes fast, buyers typically auction off regular short-term contracts to fully leverage supplier competition in each period to continuously source from the lowest-cost supplier. However, too much competition through short-term contracts does not...