通貨
通貨，貨一類，方便流通買賣，今日用嘅銀紙同散銀就係。通貨一字，好古老。戰國時管子輕重乙有寫，「黃金刀布者、民之通貨也。先王善制其通貨、以御其司命、故民力可盡也。」黃金、刀幣、布幣都叫通貨，方便交易。另外亦有人叫貨幣或流通貨幣。
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經濟學上，通貨同錢為唔同概念。通貨為實物，散銀、銀紙之類，以作交易。錢為數字，代表價值，例如銀行戶口內金額。
然而日常用語，兩者互通，錢即通貨，通貨即錢。
各地通貨有異，日常就需要兌換，個價就叫匯率。
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貨卽係大家交換嘅物品。不過人人要嘅貨都唔同，以物易物，甚唔方便。所以就有共通嘅貨，如貝、錢、銀、銀紙等，方便交換，是爲通貨。
睇埋
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