5月24日电，巴西央行行长表示，必须在更长时间内实施紧缩政策才能使CPI达到目标水平，贸易关税和不确定性对经济产生负面影响。

Core Insights - The central viewpoint is that the Brazilian Central Bank Governor emphasizes the necessity of maintaining tight monetary policies for an extended period to achieve the target Consumer Price Index (CPI) levels [1] - Trade tariffs and economic uncertainties are identified as factors negatively impacting the economy [1] Group 1 - The Brazilian Central Bank will need to implement tight monetary policies for a longer duration to reach CPI targets [1] - Economic uncertainties and trade tariffs are contributing to negative effects on the economy [1]