What makes these three currencies so strong is, of course, the fact that they reflect economic strength. But their strength also comes from the respect, fear and trust people have in the authority imprinted on the bills. The strength of the American dollar is now global. The global economy is an American creation and it is not surprising that the dollar is its premier currency. Ranked second in world currencies is the Japanese yen.
Japan is said to have half the potential investment capital in the world.
Close behind is the German mark. Nothing has happened to weaken their trust in the Deutschmark. But the euro is another matter. People don't even know the authority which issued it. It's central bank is in Frankfurt.