TOKYO -- Japan depends heavily on a single country, often China, for imports of many more types of consumer and industrial products than do Tokyo's Group of Seven peers, a government white paper shows.
The report released Tuesday analyzed 2022 trade data on around 4,300 items imported by Japan, the U.S. and Germany, as well as the G7 overall. It applied the Herfindahl-Hirschman Index (HHI), a measure of market concentration in which a reading above 50 for a given product means one specific country accounts for more than half of imports.





