Permanent Income

Permanent income is a long-run measurement of average income, wherein temporary fluctuations in income do not significantly affect consumption patterns.
On this page

Definition

Permanent Income is a concept in economics that refers to the average income an individual expects to earn over the long term. It stands in contrast to actual short-term income, which may vary due to temporary fluctuations such as bonuses, seasonal work, or economic cycles. According to the Permanent Income Hypothesis (PIH), formulated by economist Milton Friedman, individuals plan their consumption based on this average income, rather than reacting strongly to short-term income changes.

Examples

  1. Scenario of a Seasonal Worker: A fisherman who earns more during specific seasons and less off-season will base his regular consumption on what he perceives as his permanent income, averaging his earnings over the year rather than splurging during periods of high income.

  2. Professional with a Bonus: A corporate employee receiving an annual bonus does not significantly alter their consumption based on this bonus because they know it is temporary. They will budget based on their usual monthly salary, which represents their permanent income.

Frequently Asked Questions (FAQ)

Q1: How does Permanent Income differ from actual income?

  • A1: Permanent income is an averaged long-term estimate of an individual’s earnings, considering the overall stability of their income stream, while actual income includes all short-term fluctuations and temporary changes.

Q2: What role does the Permanent Income Hypothesis play in economic theory?

  • A2: The Permanent Income Hypothesis (PIH) is used to understand consumer behavior regarding saving and spending. It suggests that people base their consumption on long-term income expectations rather than on immediate income changes.

Q3: Can Permanent Income change over time?

  • A3: Yes, permanent income can change due to factors like a change in profession, significant economic shifts, or foreseeable long-term changes in one’s earnings prospects.

Q4: How does Permanent Income stability affect economic policy?

  • A4: Understanding Permanent Income helps policymakers predict consumption patterns and savings rates more accurately, which is crucial for formulating effective fiscal and monetary policies.
  • Actual Income: The total income an individual receives, including all sources of earnings, both long-term and temporary.
  • Consumption Function: An economic formula that determines consumer spending based on current income, wealth, and other factors.
  • Life-Cycle Hypothesis: Economic theory suggesting that individuals plan their consumption and savings behavior over their lifecycle.
  • Windfall Income: Unexpected gains or temporary rises in income, such as lottery winnings or inheritance.

Online References

Suggested Books for Further Study

  1. “A Theory of The Consumption Function” by Milton Friedman
  2. “Macroeconomics” by N. Gregory Mankiw
  3. “Principles of Economics” by Richard Lipsey
  4. “Economic Theory and Surveys” edited by Konstantinos D. Petros

Fundamentals of Permanent Income: Economics Basics Quiz

Loading quiz…

Thank you for exploring the concept of Permanent Income with us and tackling our quiz questions. Keep enhancing your economic understanding!

Permanent Interest Bearing Shares (PIBS)
Permanent Financing