I've just run across a footnote from an unpublished paper that I wrote many moons ago. Again similar to Dassbach's post, whether or not a firm is multinational or transnational depends on the type of firm. In short, one might conceive of the distinction between multi- and transnational firms according to centers of control, sources of constraints on firms' decisions, distribution of decisionmaking authority, or something along these lines.
Diplomacy is the art of avoiding the appearance of victory.