Solving large-scale p-median problems is usually time consuming. People often aggregate the demand points in a large-scale p-median problem to reduce its problem size and make it easier to solve. Most traditional research on demand point aggregation is either experimental or assuming uniformly...

We consider a continuous-review inventory problem for a retailer facing constant customer demand for a single product. This retailer is assumed to follow the well known and widely used order-up-to policy in making replenishment decisions, and can order from two suppliers who differ in...

This paper addresses the question of how durable or reliable manufacturers of durable goods should make their products. Essentially, consumers are likely willing to pay more for a more durable product, yet increased durability depresses replacement demand. We gain insight into this trade-off by...

We study a variation of the Integrated Production and Distribution Problem (IPDP) in which orders are processed and delivered in batches with limited vehicle capacity. We emphasize the no-wait condition between the production and distribution of each batch, and prove that the general version of...