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Consumer economy

Economy focused on goods for individuals

  • 5 min read
  • 3 chapters

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Through Economic system, Gross domestic product and Government spending

In the U.S., it is usually said by economists, including in Henry Hazlitt's "Economics in One Lesson" that 70% of spending is consumer-based, but this number is disputed by economists like Businessweek columnist Michael Mandel.

Theory of the consumer economy

The absolute income hypothesis argues that income and demand generate consumption, and that the rise in GDP gives life to a rise in consumption. It was popularized by Keynes. Milton Friedman argues for a permanent income hypothesis, that consumption spending is a function of how rich you are.

Absolute income

Absolute income was theorized by Keynes. Its model is Ct=λYt. He believed that consumption at a certain time could be determined by marginal propensity to consume multiplied by income at that particular time.

Permanent income

Permanent income was theorized by Friedman. Instead of marginal propensity to consume, it theorizes "consumption smoothing", where people spread out changes in income using borrowing (e.g., credit cards).

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