RCI and port-city relationship (Ducruet & Lee, 2006)

Figure 1: A matrix of port-city relationships 

 (adjusted from: Ducruet, C. & Lee, S.-W., 2006. Frontline soldiers of globalisation: Port–city evolution and regional competition. GeoJournal, 67(2), pp.107–122. Available at: http://link.springer.com/10.1007/s10708-006-9037-9 [Accessed March 23, 2014])

Figure 2:

RCI (Relative Concentration Index) interpretation 

 (adjusted from: Ducruet, C. & Lee, S.-W., 2006. Frontline soldiers of globalisation: Port–city evolution and regional competition. GeoJournal, 67(2), pp.107–122. Available at: http://link.springer.com/10.1007/s10708-006-9037-9 [Accessed March 23, 2014])