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单词 Consumption function
释义

Consumption function

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Consumption function

In economics, the consumption function describes a relationship between consumption and disposable income. Algebraically, this means C = f(Y_{d}) where f \colon \mathbb{R} \to \mathbb{R} is a function that maps levels of disposable income Y_{d}—income after government intervention, such as taxes or transfer payments—into levels of consumption C. The concept is believed to have been introduced into macroeconomics by John Maynard Keynes in 1936, who used it to develop the notion of a government spending multiplier. Its simplest form is the linear consumption function used frequently in simple Keynesian models:

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更新时间:2025/6/18 20:17:16