Types of Supply-side Policies (AQA A Level Economics)
Revision Note
Written by: Steve Vorster
Reviewed by: Jenna Quinn
Free Market Supply-side Policies
Free market based supply-side policies aim to free up markets and improve market incentives so as to increase the long-run aggregate supply
An Explanation of Free Market Supply-side Policies
Market based policy | Explanation | Possible effects on the aims of supply-side policy |
---|---|---|
To increase incentives |
| Taxes decrease → firms and individuals retain more money for themselves → incentives increase → productivity improves → long term growth increases |
To improve competition and efficiency |
| Regulation on firms decreases → the cost of production for firms falls → firms lower selling prices → international competitiveness improves State owned firms are privatised → more firms enter the market to compete → competition and efficiency improves |
To reduce labour costs and create labour market flexibility |
| Wages decrease → the cost of production for firms falls → firms lower selling prices → international competitiveness improves |
The possible impact of abolishing minimum wages
A national minimum wage (NMW) is a legally imposed wage level that employers must pay their workers
It is set above the market rate
Removing it will allow wage levels to fall, thus reducing the costs of production for firms
Diagram: Abolition of a Minimum Wage
Removing the national minimum wage (NMW1) may cause wage rates to fall from W1 to We
Diagram analysis
The demand for labour (DL) represents the demand for workers by firms
The supply of labour (SL) represents the supply of labour by workers
The national minimum wage and quantity for truck drivers in the UK is seen at W1Qd
The UK government removes the national minimum wage (NMW) at W1
Incentivized by lower wages, the demand for labour by firms increases from Qd → Qe
Facing lower wages, the supply of labour by workers decreases from Qd → Qe
The labour market is now in equilibrium at WeQe
There is a lower wage rate and higher quantity of workers employed
Evaluating free market supply-side policies
The benefits of supply-side policies far outweigh the negatives, yet many economies fail to fully develop their supply-side policies due to a process of constant political change and an associated change in government priorities
An Evaluation of Free Market Supply-side Policies
Advantages | Disadvantages |
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Interventionist Supply-side Policies
Interventionist supply-side policies require government intervention in order to increase the full employment level of output
An Explanation of Interventionist Supply-side Policies
Supply-side Policy | Explanation | Possible effects on the aims of supply-side policy |
---|---|---|
Education and training |
| Skill level increases → productivity improve → the cost of production for firms falls → firms lower selling prices → international competitiveness improves |
Improving quality, quantity and access to health care |
| Human capital improves → productivity improves → the cost of production for firms falls → firms lower selling prices → international competitiveness improves |
Research and development |
| A new industry emerges → new infrastructure is developed → more jobs are created → r.GDP increases → increase in long term economic growth |
Provision of infrastructure |
| New infrastructure is developed → costs of production decrease → supply increases → firms lower selling prices → international competitiveness improves |
Industrial policies |
| Industries receive subsidies → costs of production decrease → supply increases → firms lower selling prices → international competitiveness improves |
Evaluating interventionist supply-side policies
An Evaluation of Interventionist Supply-side Policies
Advantages | Disadvantages |
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Examiner Tips and Tricks
Essay questions will test your ability to differentiate between market-based and interventionist supply-side policies.
When evaluating supply-side policies in essay responses, demonstrate critical thinking by acknowledging that privatisation has been used for so long that there are often relatively few assets left to privatise, and perhaps a better way forward is to improve competition policy and regulation. Draw on the real-world examples and effectiveness of such policies: for example, has privatisation worked in all markets such as railways?
Remember, the private sector will also be increasing supply in an economy (it is not only up to the government) as they are incentivised to increase their profits.
Use diagrams to illustrate your essay responses and draw upon real-life examples so that your critical thinking is demonstrated in context of some of the major issues facing the UK economy.
Diagrams to Illustrate Supply-side Policies
Successful supply-side policies will increase the long-run aggregate supply (LRAS)
This equates to an increase in the production possibilities of an economy
Diagram: The Impact of Successful Supply-side Policies
A AD/AS and LRAS diagram that illustrates the implementation of a successful supply-side policy
Diagram analysis
Efforts to reduce trade union power have been successful
There is now less protection on wage levels and wage levels fall
Firms may hire more workers and the quantity of productive labour in the economy has increased
This causes LRAS1 to increase to LRAS2
Output increases from YFE to YFE1
Average price levels fall from AP1 → AP2
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