Must-read. 'Nuff said. Roger Erickson has already posted on it here, but I want to emphasize it is a must-read if you want to understand the MMT position on monetary systems — non-convertible, floating rate versus convertible fixed rate. This is key to grasping MMT and the MMT position.
Bonus: Contains a link to a paper Warren wrote in the '90's.
Exchange Rate Policy and Full Employment
December 1998, loosely structured lecture in Newcastle, Australia.
The Center of the Universe
Gold standard thoughts