Monetary unions of the past had a better chance of success if economic policies of the participating states were in harmony. Example: The Scandinavian Monetary Union in contrast to the Latin Monetary Union. 0 Since harmony of economic policies could not be maintained under political stress (in the First World War), even the Scandinavian Union failed. .1 0 The only cases where monetary unions have survived up toQiow are those of general political, economic, and monetary unification: Switzerland, Italy and Germany. In monetary matters, the centralizing of decisions has been a minimum requirement for the success of a union. 0 No historical monetary union has brought about political unification. It has always been the other way round.