Japanese banks top U.S. banks in world markets.

The sharp fall of the dollar caused the shift in the sharply expanding international banking market, according to a new survey. West German banks also increased their share of the international market, while the U.S. and British banks registered the sharpest declines, said the survey, compiled quarterly by the Basel, Switzerland-based Bank of International Settlements. The survey covered the June-August, 1986, period in Japan and 16 Western industrialized nations.