Monetary authorities during a hyperinflation occasionally extract seignorage and then abandon the currency. Modelling the central bank as an exhaustible resource extracting monopolist that equates average and marginal profit to extract remaining seignorage by the optimal stopping time explains...

During Zimbabwe’s hyperinflation that ended in 2009, people turned to an illegal round-tripping transaction called “burning money” to preserve purchasing power. The transaction involved illegally acquiring foreign currency at the official rate before converting back to domestic currency in...