Redistribution of Income
EconomicsΒ· Unit 3: Government Microeconomic InterventionΒ· 45 min read
1. Why Governments Redistribute Incomeβ β ββββ± 10 min
High income inequality is a common market failure in free market economies. Inequality arises from differences in inherited wealth, human capital, ability, access to education, and luck, leading to persistent poverty and unfair outcomes for disadvantaged groups.
Income inequality
An unequal spread of total income across households or individuals in an economy
Example:
The top 10% of earners holding 40% of a country's total annual income
Explain one reason why free markets produce persistent income inequality.
- 1
Free markets reward factors of production based on their marginal contribution to output, so more valuable factors earn higher incomes.
- 2
Low-income households cannot afford high quality education or training to improve their skills, locking them into low-wage work.
- 3
This creates an intergenerational cycle of disadvantage, leading to persistent inequality over time.
2. Taxation as a Redistribution Toolβ β β βββ± 15 min
Governments use the tax system to take more income from high earners to fund spending on low-income groups. Taxes are classified by how their burden changes as income rises.
Progressive Taxation
A tax where the percentage of income paid in tax increases as income rises
Example:
Personal income tax with increasing tax brackets
Tax Type | % of income paid in tax (as income rises) | Impact on inequality |
|---|---|---|
Progressive | Increases | Reduces inequality |
Proportional | Stays constant | Neutral overall impact |
Regressive | Decreases | Increases inequality |
Anna earns $10,000 per year and spends all her income. Ben earns $100,000 per year and spends 50% of his income. A 10% general sales tax applies to all spending. Show the tax is regressive.
- 1
Calculate total tax paid by Anna:
- 2
- 3
Calculate percentage of income Anna pays in tax:
- 4
- 5
Calculate total tax paid by Ben:
- 6
- 7
Calculate percentage of income Ben pays in tax:
- 8
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As income rises, the percentage of income paid in tax falls from 10% to 5%, so the tax is regressive.
3. Transfer Payments and Other Policiesβ β β βββ± 12 min
Taxation alone does not redistribute income. Governments use the revenue raised from progressive taxation to fund transfer payments and other policies that directly increase the income of low-income groups.
Transfer Payments
Unrequited government payments to households, where no good or service is exchanged in return
Example:
Unemployment benefits, state pensions, child benefit
Other common redistribution policies include minimum wage laws (to raise low-skilled wages) and free public education/healthcare (to reduce the cost of living and human capital investment for low-income households).
Explain how free state education reduces long-run income inequality.
- 1
Without free education, low-income households cannot afford quality schooling for their children, so children grow up with low skills and remain trapped in low-wage work.
- 2
Free state education gives all children equal access to skills and qualifications, regardless of their parents' income level.
- 3
This allows children from low-income backgrounds to access higher-paying jobs, breaking the intergenerational cycle of poverty and reducing long-run inequality.
4. Evaluating Redistribution Policiesβ β β β ββ± 15 min
Redistribution has both benefits and costs that must be weighed in evaluation. Benefits include reduced poverty, improved social cohesion, better health and education outcomes, and higher overall social welfare. Costs include potential disincentive effects and government failure.
Explain one disadvantage of very high progressive income taxation.
- 1
Very high marginal tax rates mean workers keep a much smaller share of any extra income they earn.
- 2
This reduces incentives to work overtime, for entrepreneurs to start new businesses, and can lead to brain drain of skilled workers to lower-tax countries.
- 3
Lower labour supply and investment reduce overall economic output, shrinking the total size of the economy and can even reduce the total revenue available for redistribution.
5. Common Pitfalls
Wrong move:
Claiming all indirect taxes are proportional, and all direct taxes are progressive.
Why:
Most indirect taxes (like general sales tax) are regressive, because lower earners spend a higher share of their income.
Correct move:
Classify taxes based on the proportion of income paid, not whether they are direct or indirect.
Wrong move:
Confusing redistribution of income with achieving perfect income equality.
Why:
Virtually all governments aim to reduce extreme poverty and narrow inequality, not equalise all incomes.
Correct move:
Always state that redistribution targets reduced inequality and poverty, not perfect equality.
Wrong move:
Only discussing taxation and ignoring transfer payments when explaining redistribution.
Why:
Redistribution requires both taxing high earners and transferring income to low earners to change the final distribution.
Correct move:
Always mention both the taxation side and the transfer payment/spending side of redistribution.
Wrong move:
Claiming all regressive taxes increase income inequality.
Why:
Regressive excise taxes on luxury goods consumed only by high earners place most of the tax burden on high income groups, reducing inequality.
Correct move:
Distinguish between general consumption taxes (regressive, increase inequality) and targeted luxury taxes (can reduce inequality).
6. Quick Reference Cheatsheet
Policy | Key Feature | Impact on Income Inequality |
|---|---|---|
Progressive income tax | Average tax rate rises with income | Reduces inequality |
Proportional flat tax | Average tax rate constant across incomes | Neutral/weak impact |
General sales tax | Average tax rate falls with income | Increases inequality |
Mean-tested transfer payments | Cash transfers to low-income households | Reduces inequality |
Free public education | Equal access to human capital investment | Reduces long-run inequality |
Minimum wage | Legal floor for low-skilled wages | Reduces inequality (if no job losses) |
When this came up on past exams
AI-estimated based on syllabus patterns β cross-check with official past papers for accuracy. Use only as revision-focus signals.
- 2022 Β· 2
Evaluate redistribution policies
- 2021 Β· 1
MCQ on regressive taxation
- 2020 Β· 3
Role of taxation in redistribution
Going deeper
What's Next
Mastering redistribution of income gives you a core framework for evaluating all government intervention in the economy, which you will use across both AS and A Level papers. This sub-topic builds on your understanding of market failure and government intervention, and connects to broader topics in development and macroeconomics where inequality is a key focus. The classification and evaluation skills you learned here will help you answer almost every essay and data response question on government policy in your exam.