Determining the optimal size of the supply base has haunted managers for years. A small supply base gives rise to the risk of supply disruption, whereas a large supply base increases the fixed cost. In this paper, we consider the risks of supply disruption due to occurrence of super, semi-super,...

Devolution of power to the grassroot organisations has increasingly been supported in recent years within the context of participatory development. The role of interpersonal communication to actualise such development has also become an area of fresh enquiry. To explore the pattern of...

Devolution of power to the grassroot organisations has increasingly been supported in recent years within the context of participatory development. The role of interpersonal communication to actualise such development has also become an area of fresh enquiry. To explore the pattern of...

We study a single-product single-location inventory system under periodic review, where excess demand is lost and the replenishment lead time is positive. The performance measure of interest is the long-run average holding cost and lost sales penalty cost. For a large class of demand...

We consider multiunit Vickrey auctions for procurement in supply chain settings. This is the first paper that incorporates transportation costs into auctions in a complex supply network. We first introduce an auction mechanism that makes simultaneous production and transportation decisions so...

We study periodic-review inventory replenishment problems with fixed ordering costs, and show the optimality of (s, S) inventory replenishment policies. Inventory replenishment is instantaneous, i.e., the lead time is zero. We consider several sales mechanisms, e.g., auction mechanisms,...

In solving certain optimization problems, the corresponding Lagrangian dual problem is often solved simply because in these problems the dual problem is easier to solve than the original primal problem. Another reason for their solution is the implication of the weak duality theorem which...

The effective local reuse of physical cash by depository institutions (DIs) is the primary goal of the new cash recirculation policy of the Federal Reserve System (Fed) of the United States. These guidelines, implemented since July 2007, encourage the reuse of cash by (i) penalizing a DI for the...