Iceland, Ireland, Scotland, Spain, Japan, New Zealand, and Sweden have announced pilot 4-day work week plans, and trials have shown increased productivity and well-being.

japan
Japan overtakes China as largest holder of US treasuries as China sells off
US Treasury Department data show Japan is now the largest holder of US treasury securities with $1.15 trillion.
China was the previous largest holder but has sold off $49 billion in the last year.