It's not a one time thing. It's a convergent process.
It provides advantage as long as the currency is in that deprecated state. Basically the same work will cost less in the depreciated currency. This causes demand for that work, which causes appreciation of the currency.
It provides advantage as long as the currency is in that deprecated state. Basically the same work will cost less in the depreciated currency. This causes demand for that work, which causes appreciation of the currency.