Lots of fascinating details in this report, but the key point is that legal actions are finally eating into the size and strength of the yakusa. I found this bit rather amusing:
Japan's post-1980s economic swoon hasn't been all bad. Yakuza made"Dispute resolution"! Ha.
money from "cleaning up" bad loans, distressed assets and bankrupt
companies. "Dispute resolution" remains a core activity, partly due to
Japan's notoriously slow and expensive legal system. "We can get things
done quicker," says Kumagai.