[dragonwriter]

> The central banks of Austria, Bolivia, Brazil, China, France, Germany, Greece, Hungary, Peru, Poland, Venezuela, and Zimbabwe have all failed to stop hyperinflation.

Which of those were central banks of nations where debts including both private and public debt were denominated principally in fiat whose monetary policy was controlled by the central bank?

Some of them were pre-fiat (gold standard), and some were dealing with situations were obligations were largely in externally-controlled fiat (e.g., USD.)