Unfortunately, America’s domestic political gridlock often blocks this. For example, the US Senate has failed to ratify the UN Convention on the Law of the Sea, despite its being in America’s national interest – indeed, the US needs the convention to support its position on how to resolve competing territorial claims in the South China Sea.
由最强大的国家领导，这对于全球公共品的生产十分重要。不幸的是，美国的国内政治僵局常常对此形成掣肘。比如，美国参议院不批准联合国海洋法公约，尽管这符合美国的国家利益——事实上，美国需要该公约支持其在解决南海主权主张争议中的立场。