Types of Supply-side Policies (AQA A Level Economics)

Revision Note

Steve Vorster

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

  • Reducing income/corporation tax rates incentivises workers to work harder (they keep more money for themselves) and provides firms with extra funds which they can use to invest in new machinery/technology

  • Reducing capital gains tax

Taxes decrease → firms and individuals retain more money for themselves → incentives increase → productivity improves → long term growth increases

To improve competition and efficiency

  • Deregulation. Any regulation increases costs of production for firms and deregulation decreases costs which may result in greater supply

  • Privatisation. Government firms are usually so big that private enterprise refrains from trying to compete with them. Privatisation encourages new firms to enter the market and compete, thus increasing the aggregate supply in the economy

  • Anti-monopoly regulation helps to increase competition in an economy which leads to a more efficient allocation of resources

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

  • Decreasing trade union power so wages can be decreased

  • Decreasing or abolishing minimum wages to lower costs of production

  • Restructuring the unemployment benefits system to incentivise the unemployed to seek work

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

3-5-3--minimum-wage_edexcel-al-economics

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

  • Improved resource allocation: increasing the productive capacity of an economy requires more efficient use of its resources, including labour

  • No burden on government budget: with an emphasis on freeing up markets and allowing market forces to drive efficiency and resource allocation, there is no requirement for government spending

  • Equity issues: E.g. the distribution of income worsens as labour market reforms and wage policies lower worker's wages

  • Time lags: there are significant time lags between expenditure and seeing the benefits

  • Vested interests: can result in less effective outcomes, e.g. there are many examples of privatisation occurring in such a way that the government's preferred bidders obtained an asset at a knock down price

  • Environmental impact: large infrastructure projects almost always have some negative externalities associated with their creation e.g. dam in a gorge to create a hydro electric dam damages the natural environment and eco system

 

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

  • Increasing government spending on education and retraining raises the quality of the workforce resulting in productivity improvements

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

 

  • Increasing government spending on healthcare so that productivity improves

Human capital improves → productivity improves → the cost of production for firms falls → firms lower selling prices → international competitiveness improves

Research and development

  • Increased government spending on innovation increases the supply of potential jobs in the economy

A new industry emerges → new infrastructure is developed → more jobs are created → r.GDP increases → increase in long term economic growth

Provision of infrastructure

  • Increased government spending on infrastructure helps to facilitate the movement of people and goods which increases the aggregate supply

New infrastructure is developed → costs of production decrease → supply increases → firms lower selling prices → international competitiveness improves

Industrial policies

  • Industrial policies are direct and targeted support to firms or industries in the form of subsidies 

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

  • Direct support of sectors important for growth: Subsidies to specific industries increase the rate of growth of an economy

    • Direct support reduces unemployment

    • Direct support can increase the level of exports

  • Improvements in living standards: Improvements in Infrastructure can raise the quality of life for all citizens

  • Costs: they are expensive to implement and are paid for using tax revenue - or increased government borrowing

  • Time lags: due to their long-term nature, changes in government often result in changes to budgets and scope of projects and the end result may be less effective than it could have been

    • The cancellation of the High Speed Rail project in the UK is an example of this

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

2-4-3---changes-to--lras---classical

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 LRAS 

      • Output increases from YFE to YFE1

      • Average price levels fall from AP1 → AP2

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Steve Vorster

Author: Steve Vorster

Expertise: Economics & Business Subject Lead

Steve has taught A Level, GCSE, IGCSE Business and Economics - as well as IBDP Economics and Business Management. He is an IBDP Examiner and IGCSE textbook author. His students regularly achieve 90-100% in their final exams. Steve has been the Assistant Head of Sixth Form for a school in Devon, and Head of Economics at the world's largest International school in Singapore. He loves to create resources which speed up student learning and are easily accessible by all.

Jenna Quinn

Author: Jenna Quinn

Expertise: Head of New Subjects

Jenna studied at Cardiff University before training to become a science teacher at the University of Bath specialising in Biology (although she loves teaching all three sciences at GCSE level!). Teaching is her passion, and with 10 years experience teaching across a wide range of specifications – from GCSE and A Level Biology in the UK to IGCSE and IB Biology internationally – she knows what is required to pass those Biology exams.