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The Ensemble Kalman Filter in Bioeconomics

  • Kvamsdal, Sturla F.

    ()

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

  • Sandal, Leif K.

    ()

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

We demonstrate the power of the Ensemble Kalman Filter in specifying ecosystem models ideal for bioeconomic analysis. Bioeconomic analysis requires models to be relatively simple, but models must still capture the nature and dynamics of the system. With the Ensemble Kalman Filter, we are able to capture complex dynamics in multispecies models with models simple enough to allow further bioeconomic analysis. While bioeconomic analysis has had limited influence on management decisions, the advent of new methods and the need for high dimensional ecosystem based management models may make bioeconomic research more relevant in the future. The filter is applied to a ecosystem model of the commercially most important species in the Barents Sea. The simpler, aggregated stochastic biomass models capture the complex dynamics of the pelagic stocks on the level needed for making decisions on for example allowable catches.

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Paper provided by Department of Business and Management Science, Norwegian School of Economics in its series Discussion Papers with number 2012/5.

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Length: 28 pages
Date of creation: 14 May 2012
Date of revision:
Handle: RePEc:hhs:nhhfms:2012_005
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. Hannesson, Rögnvaldur, 2007. "Cheating about the cod," Marine Policy, Elsevier, vol. 31(6), pages 698-705, November.
  2. Wilen, James E., 2000. "Renewable Resource Economists and Policy: What Differences Have We Made?," Journal of Environmental Economics and Management, Elsevier, vol. 39(3), pages 306-327, May.
  3. John Tschirhart, 2009. "Integrated Ecological-Economic Models," Annual Review of Resource Economics, Annual Reviews, vol. 1(1), pages 381-407, 09.
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