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JoVE Business
Macroeconomics
货币的功能
货币的功能
Business
Macroeconomics
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Business Macroeconomics
Functions of Money

5.1: 货币的功能

194 Views
01:24 min
November 14, 2025
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Please note that some of the translations on this page are AI generated. Click here for the English version.

Overview

货币有三大功能:作为交换媒介、作为价值储藏手段和记账单位。这些功能支持日常经济活动,并确保社会各个领域的顺畅交易。

作为交换媒介,货币通过允许人们用其进行商品和服务的购买,促进了交易的发生。如果没有货币,贸易将需要直接交换商品,这通常既困难又具有局限性。通过使用货币,个人可以将自己拥有的物品出售,并利用所得款项购买他们所需的商品,即使买卖双方的需求并不完全相同。

作为价值储藏手段,货币使得购买力得以从一个时间段转移到另一个时间段。这意味着人们可以今天持有货币,并在未来用它购买商品。然而,这一功能的可靠性取决于价格的稳定性;如果价格上涨过快,相同数量的货币将只能购买更少的商品和服务,从而使其作为价值储藏手段的可靠性降低。尽管货币是一种价值储藏手段,但它并非总是最优选择;股票、债券或房地产等资产可能带来更高的回报。然而,货币的关键优势在于其流动性——它是唯一既能储藏价值又能立即作为交换媒介使用的价值储藏手段。其他所有资产必须在使用前先转换为货币。

作为记账单位,货币提供了一种统一的价格表达方式。当所有商品和服务都以相同的单位定价时,比较不同商品和服务的价值变得更加容易。

要使一种资产成功地履行这三项功能,它应当具备若干特性。优质的货币通常具备耐用性、便携性、可分割性、统一性、供应量有限性以及广泛的接受度。

Transcript

货币承担三个关键功能。

首先,货币作为交换媒介。它用来购买产品。想象一下,如果没有钱。汤姆想买水果,但卖家不想要他手上的面包。除非双方同时想要对方拥有的东西,否则贸易不会发生。金钱解决了这个问题,让汤姆把面包卖给想要面包的顾客,拿钱,然后用钱买水果。

其次,货币作为价值储存工具。它允许购买力从现在转移到未来。假设玛丽今天赚了五十美元,但没有立刻花光。她计划下周用它买菜。然而,如果价格上涨,这五十美元买的商品会减少,货币作为价值储存的有效性会降低。

第三,货币是一种记账单位。它提供了一种标准的报价方式。例如,在美国,物品以美元计价,因此其价值用相同的计量单位表示。人们方便地比较不同产品的价值。

这些功能使货币对经济活动至关重要。

Explore More Videos

货币 交换媒介 价值储藏 计价单位 经济活动 交易 流动性 价格稳定 购买力 资产

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