01:06Business MattersUS makes biggest interest rate rise for 22 yearsBBC World Service Duration: 50 minutes Thu 5th May 2022, 01:06 on BBC World Service West and Central AfricaAvailable for over a yearListen nowIts central bank said it was raising the rate by half a percentage point Show more GenresFactualMoneyFormatsDiscussion & TalkBrandBusiness Matters Source: BBC Online