[1]https://en.wikipedia.org/wiki/Unidad_de_Fomento
More info: http://www.npr.org/sections/money/2010/10/04/130329523/how-f... HN discussions: https://news.ycombinator.com/item?id=12419117 (162 points, 326 days ago, 120 comments) https://news.ycombinator.com/item?id=9617710 (261 points, 790 days ago, 156 comments)
For comparison, here in Argentina at the same time we "used" convertibility, i.e. "1 (AR)peso = 1 (US)dollar" forever[1]. We used pesos bills, but the price were somewhat like in dollars. https://en.wikipedia.org/wiki/Convertibility_plan
[1] Hahaha.
[1]https://en.wikipedia.org/wiki/Unidad_de_Fomento