Every case, including the ones with low transferability to most contexts. Low is information - it tells you what to check before you try.
Two parts of the same state imported the same Brazilian model. One quietly wound it down. The other wrote it into law and hit its target in 2023.
Over 2,000 businesses, more than £1m in circulation, and international acclaim. It closed in 2021. Two systems built on the same idea are still running - one for 91 years.