ChainWhat it assumes · how to break it
Start
The government cuts the basic rate of income tax, for example from 20% to 18%.
1
As a result, the take-home pay from each hour of work rises.
net wage
net wage
Assumes: The worker earns above the personal allowance.
But: Many low-paid part-time workers earn below the allowance and see no change.
2
This means the gap between income in work and income on benefits widens, so taking a job pays more.
unemployment trap · replacement ratio
unemployment trap · replacement ratio
Best link to attack
Assumes: People are unemployed because work does not pay enough.
Assumes: People are unemployed because work does not pay enough.
But: Most unemployed people already want work; the barriers are often skills, location or childcare, which a tax cut does not fix.
3
Consequently, more people join the labour force and search for work, and labour supply shifts right.
labour force participation
labour force participation
Assumes: The substitution effect outweighs the income effect.
But: Higher earners may choose more leisure instead, so total hours worked may barely change.
4
In addition, higher disposable income raises consumption and AD, so firms need more workers.
derived demand
derived demand
Assumes: Firms respond to higher demand by hiring.
But: If the gain is saved, there is little extra demand for labour.
End
Employment rises, and voluntary and cyclical unemployment fall.
Evaluation chain
- E1However, the rise in employment depends on why people are out of work.
- E2Because many unemployed and inactive people face barriers such as missing skills, ill health, caring responsibilities or distance from jobs, a higher take-home wage does not reach the cause.
- E3As a result, labour supply changes little for the groups the policy is meant to help.
- E4So the tax cut may do little to reduce unemployment, and targeted policies such as training, childcare support or in-work benefits may work better.
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Questions this answers
- Explain how a reduction in income tax might reduce unemployment.
- Assess the effectiveness of tax cuts as a supply-side policy.
- Discuss the policies a government could use to increase labour force participation.
Diagram
Labour market: labour supply shifts right; or AD/AS with AD and LRAS shifting right.
Reverse and related
Income tax rise → work pays less → weaker incentives to take a job.