The terms "inflation" and "deflation" are used in the context of the amount of a currency in circulation, and in the wider financial context, they have little

The terms "inflation" and "deflation" are used in the context of the amount of a currency in circulation, and in the wider financial context, they have little sensible meaning otherwise. When talking about price, "increase" and "decrease" would be a more correct term, or in this case, "collapse".