It's the same thing.

International trade is impossible without both sides ceding "elements of...sovereignty".

Not sure that thats true. And I'm not super interested in a prolonged semantic argument that would sort it out. I'll just note that the "elements of sovereignty" I was referring to are transnational corps attacking nation-states for enacting laws that would protect their populations but would cut into corporate profits. Many examples of which already exist, like, say, the cigarette labelling laws of Austraila and Togo. Or environmental protection laws in Canada (and else where). These are not the sorts of "sovereignty" one negotiates away in the traditional westphailian system of nation states.