伸しん縮しゅく法ほう

noun

sliding scale

A method or system where a value (such as a price, fee, or tax) is adjusted proportionally according to a changing factor like income or quantity. Often used in economic or administrative contexts.

• この制せい度どでは、所しょ得とくに応おうじて保ほ険けん料りょうが変かわる伸しん縮しゅく法ほうが採さい用ようされている。

  This system uses a sliding scale where insurance premiums change according to income.