Columbia subject headings:
United States--Commercial policy.
United States--Foreign economic relations.
Harvard subject headings:
Balance of payments--United States
Capital movements--United States.
Investments, American.
Investments, Foreign--United States.
United States--Foreign economic relations.
Princeton subject headings:
Balance of payments--United States.
Capital movements--United States.
Investments, American.
Investments, Foreign--United States.
United States--Foreign economic relations.