indexation

詳細解釋：

in.dex.a.tion

n.（名詞）
The automatic adjustment of an economic variable, such as wages, taxes, or pension benefits, to a cost-of-living index, so that the variable rises or falls in accordance with the rate of inflation.
指數化：一種自動調控方法，把一些經濟變數，例如工資、稅收或養老金做成生活成本指數，使這些變數隨著通貨膨脹率的增減而上升或下降