6. Conclusions
This study investigates whether inter-port relationships are characterized primarily by complementarity or competition. The results show that the nature of inter-port relationships differs significantly between the major European port regions. The two largest port regions in Europe, Hamburg–Le Havre and the Mediterranean exhibit opposite characteristics. While Hamburg–Le Havre appears to be primarily distinguished by competition, the Mediterranean ports appear mostly complementary. Based on the findings of this study it appears motivated to further research the impact of port governance on capacity and competition in maritime ports. If European Union policy makers wish to harmonize the laws and policies governing the financial and functional autonomy of port authorities, the indication of this paper is that close attention should be paid to effects on port competition, and conversely, on the ability and incentives for ports to co-operate.