It is well known that the international logistics and supply chains are subject to the domination of seaports and shipping lines each with increasingly significant market power. This implies that international supply chains. which typically involves sea transport as a key chain segment. could be subject to the double marginalisation problem. https://www.jmannino.com/limited-deal-Vaal-E5000-Disposable-5000-puffs-12mL-flash-save/