We establish the computational complexity of the problem of minimizing makespan in a flowshop, where each jobs requires a pallet the entire time, from the start of its first operation until the completion of the last operation. We prove that the problem is NP-hard in the strong sense for m =2...

Recent code-share agreements among major US airlines represent a significant development in the airline industry, as these agreements allow the partner airlines to sell seats on each other's flights across the US. In this paper, we examine with original data how prices and passenger volumes were...

A term map is a map that visualizes the structure of a scientific field by showing the relations between important terms in the field. The terms shown in a term map are usually selected manually with the help of domain experts. Manual term selection has the disadvantages of being subjective and...

This paper examines how strategic customer behavior impacts e-tailers' inventory storage location, pricing and inventory level decisions. We build a stylized model where an e-tailer either has only a central warehouse, or add a local warehouse and thus has both warehouses for inventory storage....

We explore the problem of batch flow production scheduling on a single machine with deterministic demand and arrivals over a finite horizon. The objective of the production system is to minimize total flow-time over the horizon to reduce in-process inventory levels and to enable a company to...

We study the optimal policies of capacitated two-echelon serial inventory systems. For a system with smaller downstream capacity, we fully characterize the optimal policy using an intuitive backward induction. The key lies in two inductive assumptions: (a) if initially the stock level at the...

Intermodal rail/road freight transport constitutes an alternative to long-haul road transport for the distribution of large volumes of goods. The paper introduces the intermodal transportation problem for the tactical planning of mode and service selection. In rail mode, shippers either book...