The Lower Saxony Ministry for Economic Affairs commissioned ISL to investigate which economic effects originating in the ports in Lower Saxony extend beyond the immediate port locations via the effects of the regional economy. For this analysis, maritime transport-dependent employment was set against port-dependent employment, the latter targeting the dependence on a specific port location and forming the basis of the pertinent studies. The results showed that even manufacturing locations in the distant hinterland are dependent on functioning port systems in order to sell their products on the world market. Therefore, from this perspective, the ports of Lower Saxony secure, through goods transshipment, over 100,000 jobs in industry and manufacturing. The study also high-lighted that Bavaria, being the federal state with the longest distances to the sea ports, in fact ex-ports the most goods according to value via the sea route compared to the other federal states.