the economist, our big mac index will sadden americas burger lovers, https://www.economist.com/finance-and-economics/2025/07/16/our-big-mac-index-will-sadden-americas-burger-lovers
看到鄉民戲謔寫道美金兌台幣為1:13，疑惑這數字怎麼來的。
"”Hence $1 should buy NT$13.”應該是從big mac index推斷的。