美国亚特兰大联储主席Bostic：美国评级遭下调可能在经济中产生连锁反应。需要等待3到6个月，以观察不确定性如何得到解决。我更倾向于今年降息一次。美国国债市场仍然运转良好。

Core Viewpoint - The downgrade of the U.S. credit rating may trigger a chain reaction in the economy, necessitating a wait of 3 to 6 months to observe how uncertainties are resolved [1] Group 1: Economic Implications - The potential chain reaction from the credit rating downgrade could impact various sectors within the economy [1] - The U.S. Treasury market continues to operate effectively despite the downgrade [1] Group 2: Monetary Policy Outlook - There is a preference for a single interest rate cut this year [1]