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Missing in Action? Speed optimization and slow steaming in maritime shipping

Listed author(s):
  • Assmann, Lisa

    ()

    (Dept. of Business and Management Science, Norwegian School of Economics)

  • Andersson, Jonas

    ()

    (Dept. of Business and Management Science, Norwegian School of Economics)

  • Eskeland, Gunnar S.

    ()

    (Dept. of Business and Management Science, Norwegian School of Economics)

This paper analyzes the claim, made by both academics and by industry insiders, that vessels speed up under conditions of high freight rates and low bunker prices. The rationale for the claim is that a ship should move slowly when high bunker prices make energy cost savings great and when the low reight rates give little temptation to rush for the next transport job. The analysis is based on the theoretical model for speed optimization by Ronen (1982) applied to AIS1 data on actual speeds of all VLCCs2 leaving from the Persian Gulf to main destinations in Japan, South Korea, China from 2006 to 2012. We find some support for the theory, however with elasticities, both for freight rates and bunker prices, of smaller magnitude than expected. We also find that speed optimizing behaviour is much more pronounced on backhaul trips than on laden trips and that the speed on trips to Japan is almost completely insensitive to changes in freight rates and bunker prices. Our conclusion is that there is a potential for gains from more adoption of slow steaming.

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File URL: http://hdl.handle.net/11250/279034
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Paper provided by Department of Business and Management Science, Norwegian School of Economics in its series Discussion Papers with number 2015/13.

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Length: 21 pages
Date of creation: 12 Mar 2015
Handle: RePEc:hhs:nhhfms:2015_013
Contact details of provider: Postal:
NHH, Department of Business and Management Science, Helleveien 30, N-5045 Bergen, Norway

Phone: +47 55 95 92 93
Fax: +47 55 95 96 50
Web page: http://www.nhh.no/en/research-faculty/department-of-business-and-management-science.aspx
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  1. Roar Adland & Siri P. Strandenes, 2007. "A Discrete-Time Stochastic Partial Equilibrium Model of the Spot Freight Market," Journal of Transport Economics and Policy, University of Bath, vol. 41(2), pages 189-218, May.
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