What little impact import price shocks have on US inflation is highly transitory, with most of the effect tapering off after just two quarters. A sharp 10% appreciation of the US dollar, for example, would reduce inflation for non-fuel imports by 4.4% cumulatively over the next 2-3 quarters, but would have only a negligible impact on inflation after that point.
进口价格对美国通胀的微小冲击基本上都是暂时性的，大多在两个季度后便已消失。比如，美元急剧升值10%将在此后2—3个季度内累计造成非燃料进口品通胀下降4.4%，但此后对通胀的影响便可忽略不计。