美國四月通漲率為8.3% (按年），較3月嘅8.5%輕微回落，但仍超預期嘅8.1%。如果計所謂嘅核心通漲（扣除食物及能源）增長為6.2%，都係較3月（6.5%) 有所回落。
值得留意，係一方面按月整體通漲升幅四月只係0.3%，同上個月嘅1.2% 相比低好多。一個原因係汽油價格按月錄得6.1%嘅跌幅。
不過，食品價格仍然有0.9%嘅按月上升，電費及燃氣等嘅能源服務仍然有1.3% 按月升幅。交通服務更有按月3.1%嘅價格上漲。
咁交通服務係咩一回事?
Lisa Abramowicz on Twitter: “Why did U.S. inflation come in so much hotter than expected? In large part due to airplane tickets getting much more expensive. Airfares rose 18.6% month over month, “well above the 5.5% increase we were expecting:” Morgan Stanley / Twitter”
Why did U.S. inflation come in so much hotter than expected? In large part due to airplane tickets getting much more expensive. Airfares rose 18.6% month over month, “well above the 5.5% increase we were expecting:” Morgan Stanley
原來交通服務嘅升幅主要係由機票價格按月上升18.6%所帶動。呢個相信係需求太旺同埋低基數所帶動
更新: 補充多一個通漲走勢數據。下圖為Cleveland Fed嘅Median CPI 與及 Trimmed-mean CPI數字，兩者嘅目標都係去除極端升跌幅項目對CPI數據嘅影響，以估算所謂嘅Underlying Inflation。 4月嘅數字顯示，目前美國通漲未有明顯轉弱嘅趨勢，甚至按年數字反映通漲進一步上升。
當然，一個月嘅輕微升跌，又無須過份解讀嘅。
