new world economy

Peter F. Drucker says

“Furthermore, most multinationals are not big. Rather, they are mostly small- to medium-sized enterprises. Typical perhaps is a German manufacturer of specialized surgical instruments who, with $20 million in sales and with plants in eleven countries, has around 60 percent of the world market in the field. And only a fraction of multinationals are manufacturers. Banks are probably the largest single group of multinationals, followed by insurance companies such as Germany’s Allianz, financial-services institutions such as GE Finance Corporation and Merrill Lynch, wholesale distributors (especially in pharmaceuticals), and retailers like Japan’s Ito Yokado.”

How have these companies become multinational?