S.Caschili and F.R.Medda The challenge now is to set up an integrated multidisciplinary approach in practice.Scholars have already thrown down the gauntlet to the scientific community of a multidisciplinary approach using the CAS paradigm [13,56]alas,not yet in maritime shipping. ACKNOWLEDGMENTS The authors acknowledge the financial support of the Engineering and Physical Sciences Research Council (EPSRC)under the grant ENFOLD-ing:Explaining,Modelling and Forecasting Global Dynamics,reference EP/H02185X/1 REMARKS "Source:World Container Traffic -Drewry Annual Reports;End Year Fleet Size-CI Market Analysis:Container Leasing Market 2010 2For an extensive review of complex networks,see [30-32] 3A measure of the tendency for nodes to cluster together. 4In Network Theory degree k represents the number of connections of every node. 5In the case of ship networks,Strength represents the sum of goods passing through a port in one year:the sum of the links'weights that converge on a node 6The Betweenness Centrality of a node is the number of topologically shortest paths that pass through that node REFERENCES [1]Rodrigue,J.P.;Comtois,C.and Slack,B.:The Geography of Transport Systems Routledge,London,2006, [2]Rodrigue,J.P Comtois,C.and Slack,B.:The Geography of Transport Systems.edition. Routledge,New York,2009, [3]Glen,D.and Marlow,P.:Maritime Statistics:A New Forum for Practitioners. Maritime Policy Management 36(2),185-195,2009, [4]Barthelemi,M.:Spatial Networks Physics Reports 499,1-101,2011, [5]Ducruet,C.and Notteboom,M.:The Worldwide Maritime Network of Container Shipping: Spatial Structure and Regional Dynamics. GaWC Research Bulletin 364,2010, [6]Notteboom,T.:Container Shipping and Ports:An Overview. Review of Network Economics 3(2),86-106,2004. [7]Kaluza,P.;Kolzsch,A.;Gastner,M.T.and Blasius,B.:The Complex Network of Global Cargo Ship Movements. Journal of the Royal Society Interface 7(48),1093-1103,2010, [8]Arthur,W.B.:Introduction:Process and Emergence in the Economy. In:Arthur,W.B.;Durlauf,S.and Lane,D.A.,eds.:The Economy as an Evolving Complex System II. Reading,Boston,pp.1-4,1997, [9]Dooley,K.:Complex Adaptive Systems:A Nominal Definition. The Chaos Network 8(1).2-3.1996. [10]Gell-Mann,M.:Complex Adaptive Systems In:Cowan,G.A.;Pines,D.and Meltzer D.,eds:Complexity:metaphors,models,and reality Addison-Wesley,pp.17-45,1994, [11]Gell-Mann,M.:The Quark and the Jaguar:Adventures in the Simple and the Complex. Owl Books.New York.1995. [12]Holland,J.H.:Adaptation in Natural and Artificial Systems. The MIT Press,Cambridge,1992, 12S. Caschili and F.R. Medda 12 The challenge now is to set up an integrated multidisciplinary approach in practice. Scholars have already thrown down the gauntlet to the scientific community of a multidisciplinary approach using the CAS paradigm [13, 56] alas, not yet in maritime shipping. ACKNOWLEDGMENTS The authors acknowledge the financial support of the Engineering and Physical Sciences Research Council (EPSRC) under the grant ENFOLD-ing: Explaining, Modelling and Forecasting Global Dynamics, reference EP/H02185X/1. REMARKS 1 Source: World Container Traffic – Drewry Annual Reports; End Year Fleet Size – CI Market Analysis: Container Leasing Market 2010. 2 For an extensive review of complex networks, see [30-32] 3 A measure of the tendency for nodes to cluster together. 4 In Network Theory degree k represents the number of connections of every node. 5 In the case of ship networks, Strength represents the sum of goods passing through a port in one year: the sum of the links’ weights that converge on a node. 6 The Betweenness Centrality of a node is the number of topologically shortest paths that pass through that node. REFERENCES [1] Rodrigue, J.P.; Comtois, C. and Slack, B.: The Geography of Transport Systems. Routledge, London, 2006, [2] Rodrigue, J.P.; Comtois, C. and Slack, B.: The Geography of Transport Systems. 2nd edition. Routledge, New York, 2009, [3] Glen, D. and Marlow, P.: Maritime Statistics: A New Forum for Practitioners. Maritime Policy & Management 36(2), 185-195, 2009, [4] Barthelemi, M.: Spatial Networks. Physics Reports 499, 1-101, 2011, [5] Ducruet, C. and Notteboom, M.: The Worldwide Maritime Network of Container Shipping: Spatial Structure and Regional Dynamics. GaWC Research Bulletin 364, 2010, [6] Notteboom, T.: Container Shipping and Ports: An Overview. Review of Network Economics 3(2), 86-106, 2004. [7] Kaluza, P.; Kolzsch, A.; Gastner, M.T. and Blasius, B.: The Complex Network of Global Cargo Ship Movements. Journal of the Royal Society Interface 7(48), 1093-1103, 2010, [8] Arthur, W.B.: Introduction: Process and Emergence in the Economy. In: Arthur, W.B.; Durlauf, S. and Lane, D.A., eds.: The Economy as an Evolving Complex System II. Reading, Boston, pp. 1-4, 1997, [9] Dooley, K.: Complex Adaptive Systems: A Nominal Definition. The Chaos Network 8(1), 2-3, 1996, [10]Gell-Mann, M.: Complex Adaptive Systems. In: Cowan, G.A.; Pines, D. and Meltzer D., eds: Complexity: metaphors, models, and reality. Addison-Wesley, pp. 17-45, 1994, [11]Gell-Mann, M.: The Quark and the Jaguar: Adventures in the Simple and the Complex. Owl Books, New York, 1995, [12]Holland, J.H.: Adaptation in Natural and Artificial Systems. The MIT Press, Cambridge, 1992