Indexation 指数化
（重定向自Deindexation）
Indexation is a technique to adjust income payments by means of a price index, in order to maintain the purchasing power of the public after inflation, while Deindexation refers to the unwinding of indexation.
From a macroeconomics standpoint there are four main categories of indexation: wage indexation, financial instruments rate indexation, tax rate indexation, and exchange rate indexation. The first three are indexed to inflation. The last one is typically indexed to a foreign currency mainly the US dollar. Any of these different types of indexation can be reversed (deindexation).