To the author's credit, the article consistently says that "Japanese culture" is risk-averse, not that "Japanese" are risk-averse. If you have two cultures A a

To the author's credit, the article consistently says that "Japanese culture" is risk-averse, not that "Japanese" are risk-averse. If you have two cultures A and B, and A has rules or conventions that reward risky behavior more than B, then I think it's fair to describe culture A as more risk-tolerant and culture B as more risk-averse.