noun
reciprocal tariff
A tariff imposed by one country in response to similar tariffs imposed by another country; used in trade policy contexts.
両国は相互関税を導入し、貿易摩擦が激化した。
Both countries introduced reciprocal tariffs, intensifying trade friction.
報復関税 (retaliatory tariff) is a specific type of reciprocal tariff imposed as a direct retaliation, while 相互関税 is a broader term for any mutually imposed tariffs.
Compound of 相互 (mutual, reciprocal) and 関税 (tariff).