Express service carriers provide time-guaranteed deliveries of parcels via a network consisting of nodes and hubs. In this, nodes take care of the collection and delivery of parcels, and hubs have the function to consolidate parcels in between the nodes. The tactical network design problem...

Indivisible units are produced with increasing marginal costs. Under Average Cost, each user pays average cost. Under Random Priority, users are randomly ordered (without bias) and successively offered to buy at the true marginal cost. Both AC and RP inefficiently overproduce. RP tends to...

We consider the problem of scheduling n jobs in a pallet-constrained two-machine flowshop so as to minimize the makespan. In such a flowshop environment, each job needs a pallet the entire time, from the start of its first operation until the completion of the last operation, and the number of...