Williams, do Fed, diz que política monetária está 'bem posicionada' para 'circunstâncias' incomuns https://www.reuters.com/business/feds-williams-says-monetary-policy-well-positioned-unusual-circumstances-2026-03-30/?taid=69cadc291de6e000018af6de https://www.reuters.com/business/feds-williams-says-monetary-policy-well-positioned-unusual-circumstances-2026-03-30/?taid=69cadc291de6e000018af6de