Power Distance Index
High score meaning: Accepts hierarchy and unequal power distribution
Low score meaning: Prefers equality and questions authority
Book definition: The extent to which the less powerful members of institutions and organizations within a country expect and accept that power is distributed unequally.
Japan (54) and United States (40) are broadly similar on Power Distance Index. The small gap suggests that on this dimension, people from both countries are likely to share similar expectations.
Practical implication: You can largely rely on common ground between Japan and United States on power distance, though edge cases may still surface.