Common Market experience has accustomed many U.S. manufacturers to a “multinational” outlook. In a list of the biggest U.S. investments per country, the Netherlands ranks second.

WESTERN EUROPE

The most important development in international trade for a generation has been the flow of U.S. corporate capital to Europe. From $1.7 billion in 1950, it grew last year to $20 billion. The cash has not only fueled much of the postwar European boom but has created controversy…