Title
Airfreight forwarding under system-wide and double discounts
Abstract
Abstract We consider the shipment consolidation and freight forwarding problem under two discount schemes: the system-wide and the double-discount. In the system-wide scheme, the cost associated with one flight does not only depend on the quantity of freight assigned to that flight, but also on the total freight assigned to other flights operated by the same carrier. In the double-discount scheme, there are cost savings based on the quantity shipped on a given flight on top of the system-wide discount. We propose models based on multi-commodity network flow formulations that take into account practical aspects such as cargo unsplitability, shipment volume and over-declaration. We propose solution methodologies based on Lagrangrean relaxation and local branching. Numerical testing reveals the efficiency of the approaches presented and sheds light on some managerial implications. We find that freight forwarders do not only reduce costs from the system-wide and the double-discount schemes, but are also likely to engage with fewer airlines, thus reducing administrative fees.
Year
DOI
Venue
2017
10.1007/s13676-015-0093-5
EURO J. Transportation and Logistics
Keywords
Field
DocType
Transportation,System-wide discount,Double discount,Lagrangian relaxation,Column generation,Local branching,Network planning
Flow network,Column generation,Network planning and design,Air cargo,Transport engineering,Operations research,Engineering,Lagrangian relaxation,Numerical analysis,Consolidation (soil),Branching (version control)
Journal
Volume
Issue
ISSN
6
2
2192-4384
Citations 
PageRank 
References 
0
0.34
7
Authors
3
Name
Order
Citations
PageRank
Samir Elhedhli125319.18
Zichao Li211.71
James H. Bookbinder300.68