4.5 the role of the state in the macroeconomy

capital expenditure

• Capital expenditure refers to government spending on long-term investments and assets that are expected to provide benefits over multiple years.

• Examples include infrastructure projects (e.g., roads, bridges), public buildings, and investments in education or healthcare facilities.

• Capital expenditure contributes to economic growth and productivity by enhancing a country's physical and human capital.

current expenditure

• Current expenditure consists of day-to-day government spending on recurring items, such as salaries, maintenance, and operational costs.

• Current expenditure maintains the existing level of public services but does not typically contribute directly to long-term economic growth.

transfer payments

• Transfer payments are government payments made to individuals or groups without any expectation of goods or services in return.

• Examples include social welfare payments (e.g., unemployment benefits, pensions), subsidies to specific industries, and grants to local governments.

productivity and growth

• Higher levels of public expenditure on investments like education, healthcare, and infrastructure can enhance human capital and physical capital, thereby contributing to productivity and long-term economic growth.

expenditure on living standards

• Public expenditure on welfare programs, healthcare, and education can improve living standards by providing essential services and social safety nets.

crowding out

• Excessive government spending can lead to crowding out, where increased government borrowing raises interest rates, potentially reducing private sector investment and economic growth.

level of taxation

• The level of public expenditure is often linked to taxation policies. Higher public expenditure may require higher taxes, which can impact disposable income and economic incentives.

equality

• Public expenditure can reduce income inequality by providing social support to disadvantaged groups and funding education and healthcare accessible to all citizens.

microeconomic reasons for public expenditure

• Correcting Externalities: Funding for initiatives that reduce negative externalities (e.g., pollution control) or boost positive ones (e.g., vaccination programs).

• Correction of Market Failure: The market may under-provide merit goods (healthcare, education) or fail to provide public goods (national defense, street lighting). Government spending corrects this.

macroeconomic reasons for public expenditure

• Economic Growth and Stabilization: During recessions, government increases spending (fiscal policy) to boost Aggregate Demand (AD), stimulating growth and reducing unemployment.

• Managing the Economic Cycle: Governments use spending to reduce the severity of recessions (expansionary) or cool down inflation (contractionary), acting as an automatic stabilizer.

how does demand for public services impact the size of expenditure

Rising demand for public services directly increases the size of public expenditure, particularly through demographic changes like an aging population (higher health/pension costs) and higher income levels, which boost demand for superior public services

how does size and age distribution of the population impact the size of expenditure

Population size and age distribution heavily influence public expenditure by driving demand for services and transfer payments. A larger population increases overall demand for public goods, while an aging population specifically boosts spending on pensions and healthcare. Conversely, a younger population demands higher educational investment

how the trade cycle impact the size of expenditure

During recessions, spending increases on unemployment benefits and stimulus projects. In booms, lower demand for social support and reduced stimulus needs often shrink spending, as governments focus on reducing deficits.

how does interest on the national debt impact the size of expenditure

Interest on the national debt increases the total size of public expenditure by requiring a significant portion of tax revenue to be spent on debt servicing rather than public services

how does the rate of inflation impact the size of expenditure

• Real vs. Nominal Value: If inflation is higher than the rate at which government budgets are increased, the real value of public spending falls, meaning the government can purchase fewer goods and services.

• Austerity Effect: When public services operate on fixed cash budgets, higher-than-expected inflation acts as an "unintended dose of austerity," forcing departments to cut services.

• Public Sector Pay: Inflationary pressures usually lead to demands for higher public sector wages, which, if met, increase nominal spending.

• Fiscal Drag: Inflation can boost tax revenues, which might allow the government to finance more spending, but this rarely keeps pace with the increased cost of procurement.

progressive tax

• A tax where the proportion of income paid in tax rises as income rises

• Examples – income tax, stamp duty

regressive tax

• A tax where the proportion of income paid in tax falls as income rises

• Examples – VAT, council tax

proportional tax

• The proportion of income paid in tax stays constant as income rises

Example – flat rate taxes (e.g. 20% on all income)

reasons for tax

• To pay for government expenditure

  • In the short run, borrowing can pay for expenditure, but in the long run taxation must cover spending

• To correct market failure

  • Increasing resource allocation through taxation of, e.g., tobacco, alcohol, etc.

• To manage the economy

  • Tax rates can be used to influence unemployment, inflation, etc.

• To redistribute income

  • Taxing different groups of people at different rates may redistribute income in the economy

progressive tax on equality

• Increased income equality

  • Greater redistribution effect - especially if used to target higher earners

  • Can be combined with spending policies that target the poorer in society

• Evaluation

  • Depends on how tax revenues are used and whether other fiscal changes offset the impact of the higher marginal tax rate.

progressive tax on incentives to work

• Impact on incentives to work

  • Could act as disincentive to take higher paid jobs

  • Negative impact on the supply-side of the economy (productive capacity)

• Evaluation

  • Workers might work harder to maintain standard of living

    • i.e. the higher paid need to work more hours to protect net income levels

  • Lower taxation on the poorest may increase the incentive to take paid work for the unemployed

progressive tax on tax revenues

• Tax revenues/public finances

  • Raising of tax levels should raise tax revenue

  • Could be used as part of an objective of reducing budget deficit

• Evaluation

  • Depends at what rate of tax that tax revenues are maximised

  • Laffer curve analysis

    • Depends on position along curve

  • Also depends on overall impact on AD & economic growth

the laffer curve

• Tax rate rises may cause a disincentive effect – reducing the number of taxable work hours

• Tax rate rises may cause greater levels of tax avoidance or evasion

• Used as a justification for lowering the rate of tax

• Whether lowering tax rate leads to a rise in tax revenue depends on tax rates being above t₁

could progressive tax lead to tax avoidance or tax evasion

• Could cause an increase in tax evasion (illegal) and tax avoidance (legal)

  • Creates a greater incentive to find methods avoid paying tax

• Evaluation

  • Depends on tax structure – if there are many tax loopholes then avoidance is easier

  • Depends on powers of tax authorities to collect taxes and enforce payment

progressive tax on tax exiles

• Might cause an increase in number of tax exiles

  • Richer people have an incentive to move to countries with lower top rates of tax 

• Evaluation

  • Income tax is not the only factor which influences a person’s decision on where to live 

taxes on consumption

• Taxes like income tax and national insurance reduce disposable income – the result is a fall in consumption and a fall in AD

  • A fall in the price level, a fall in employment (rise in unemployment), a fall in real output

• Evaluation

  • If the revenue from taxes is spent by the government, the impact may be neutral, or even stimulative

    • Redistributing from richer to poorer may increase consumption due to the higher MPC of poorer consumers

progressive taxes on the trade balance

• A rise in taxes on households will reduce disposable income and therefore levels of consumption

  • This means less spending on imports, improving the balance of trade

• Evaluation

  • If the drop in aggregate demand leads to spare capacity, there may be a subsequent fall in investment

    • This could harm the long run competitiveness of domestic firms which could worsen the trade balance

progressive tax on FDI

• FDI is investment by a foreign company where they acquire an interest in a domestic company

  • Countries compete to attract FDI because of its positive impact on employment and output

    • One way to attract FDI is to lower corporation tax

• Evaluation

  • Can lead to a race to the bottom – if all countries lower their corporation taxes then it simply leads to a lowering of tax revenues

Difference between automatic stabilisers and discretionary fiscal policy

Automatic stabilisers:
Automatic tax/spending changes that stabilise the economy without government action.

Discretionary fiscal policy:
Deliberate government changes to tax or spending to influence the economy.

fiscal deficit and the national debt

Fiscal deficit:
When government spending exceeds tax revenue (in a year).

National debt:
Total accumulated government borrowing over time.

distinction between structural and fiscal deficits

Structural deficit:
Persistent deficit even when the economy is at full capacity (due to policy choices).

Cyclical deficit:
Temporary deficit caused by economic downturns (falls in tax, rises in spending).

factors impacting the size of national debt

• Size of fiscal deficits (bigger deficits → more debt)

• Economic growth (higher growth → reduces debt ratio)

• Interest rates (higher → more debt servicing)

• Inflation (reduces real value of debt)

• Government policies (spending & taxation decisions)

Explain the factors influencing the size of fiscal deficits

Explain the possible measures that might reduce fiscal deficits and national debts