在经济学里，指数化是指根据物价指数对工资的一种校正，使得公众在通货膨胀之后依然拥有相同的购买力。

企业和工会之间的许多长期合同有工资根据消费物价指数部分或全部指数化的条款。这种条款被称为生活费用津贴或COLA。

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).