Fiscal Policy: Government Spending and Taxation

Fiscal policy refers to the use of government spending and taxation to influence the level of aggregate demand (AD) and, through it, macroeconomic objectives such as economic growth, employment, inflation control, and the balance of payments. It is one of the two main demand-side policy tools available to governments — the other being monetary policy.

Key Definition: Fiscal policy is the deliberate manipulation of government spending (G) and taxation (T) to influence aggregate demand, output, employment, and the price level.

The Government Budget

The government budget sets out planned spending and revenue for the coming financial year. In the UK, the Chancellor of the Exchequer presents the budget to Parliament, usually in the autumn.

Key Components

Component	Description	Examples
Government spending (G)	Total public expenditure on goods, services, transfers	NHS, defence, education, pensions, Universal Credit
Taxation (T)	Revenue raised from individuals and firms	Income tax, VAT, corporation tax, fuel duty
Budget balance	G − T	Surplus if T > G; Deficit if G > T

The UK government budget has been in deficit for most years since 2001, meaning the government has spent more than it has received in revenue. In 2009-10, following the Global Financial Crisis, the deficit peaked at approximately 10% of GDP — around £153 billion.

Exam Tip: Always distinguish between the budget deficit (the annual shortfall of revenue relative to spending) and the national debt (the total accumulated stock of government borrowing). Examiners frequently penalise students who confuse the two.

Types of Government Spending

Government spending can be divided into three broad categories:

1. Current Spending (Day-to-Day)

Current spending covers the routine costs of running public services. This includes wages for teachers, nurses, and civil servants; heating and lighting government buildings; purchasing medical supplies for the NHS. Current spending does not create new assets — it maintains existing service levels.

2. Capital Spending (Investment)

Capital spending creates new assets with long-term benefits. Examples include building new hospitals, schools, roads, and railway lines. Keynes (1936) argued in The General Theory of Employment, Interest and Money that capital spending has the greatest multiplier effect because it creates employment directly in construction and manufacturing, and indirectly through the increased consumption of those workers.

3. Transfer Payments

Transfer payments redistribute income from taxpayers to recipients without any corresponding output. Examples include the state pension, Universal Credit, Jobseeker's Allowance, and child benefit. Transfer payments are not included in the calculation of GDP because they do not represent payment for a newly produced good or service.

Automatic Stabilisers

Automatic stabilisers are elements of fiscal policy that change automatically with the economic cycle, without any deliberate government decision. They act as a built-in counter-cyclical mechanism, dampening fluctuations in aggregate demand.

How Automatic Stabilisers Work

During a recession:

Tax revenues fall automatically as incomes and profits decline (fewer people paying income tax, lower corporation tax receipts, reduced VAT revenue as spending falls).
Government spending on welfare benefits rises automatically as unemployment increases (more people claiming Universal Credit, Jobseeker's Allowance).
The budget deficit widens, injecting spending into the economy and partially offsetting the fall in private sector demand.

During a boom:

Tax revenues rise automatically as incomes and profits grow.
Government spending on welfare falls automatically as unemployment decreases.
The budget moves towards surplus (or the deficit narrows), withdrawing spending from the economy and partially offsetting inflationary pressures.

Phase of Cycle	Tax Revenue	Welfare Spending	Budget Balance	Effect on AD
Recession	Falls	Rises	Deficit widens	Expansionary (supports AD)
Boom	Rises	Falls	Deficit narrows / surplus	Contractionary (dampens AD)

Exam Tip: Automatic stabilisers are a strength of fiscal policy because they act immediately without the recognition, decision, and implementation lags that affect discretionary policy. Make this point explicitly in evaluation.

Discretionary Fiscal Policy

Discretionary fiscal policy involves deliberate, conscious decisions by the government to change tax rates or spending levels in order to influence aggregate demand. Unlike automatic stabilisers, discretionary changes require legislation and take time to implement.

Expansionary Fiscal Policy

An expansionary fiscal stance involves increasing government spending and/or cutting taxes to boost AD. This shifts the AD curve to the right.

Example: In the 2008-09 recession, Chancellor Alistair Darling implemented a temporary reduction in VAT from 17.5% to 15% (December 2008 to January 2010) to stimulate consumer spending. This was a classic Keynesian demand-management response.

Contractionary Fiscal Policy

A contractionary fiscal stance involves cutting government spending and/or raising taxes to reduce AD. This shifts the AD curve to the left.

Example: Following the 2010 general election, the Coalition government under George Osborne pursued austerity — cutting departmental spending by an average of 19% and raising VAT from 17.5% to 20% in January 2011.

The Keynesian Multiplier

Keynes (1936) argued that an initial change in government spending leads to a larger final change in national income. This is the multiplier effect.

The multiplier (k) can be expressed as:

k = 1 / (1 − MPC) or equivalently k = 1 / MPW

where MPC = marginal propensity to consume and MPW = marginal propensity to withdraw (savings + taxation + imports).

If MPC = 0.8, then k = 1 / (1 − 0.8) = 5. A £10 billion increase in government spending would lead to a £50 billion increase in national income.

However, the multiplier is likely to be smaller in practice because:

The UK has a high marginal propensity to import (open economy).
Progressive taxation withdraws increasing amounts from the circular flow.
If the economy is near full capacity, extra spending may cause inflation rather than real output growth.

The Public Sector Borrowing Requirement (PSBR)

The PSBR (now more commonly referred to as Public Sector Net Borrowing, PSNB) is the amount the government needs to borrow in a given year to finance its budget deficit. The government borrows by selling gilts (government bonds) to financial markets.

How the Government Borrows

HM Treasury issues gilts with a fixed coupon (interest rate) and maturity date.
Investors (pension funds, banks, overseas governments) purchase these gilts.
The government receives cash to finance spending.
At maturity, the government repays the face value of the gilt.

Evaluation of Fiscal Policy

Strengths	Weaknesses
Can target specific sectors or regions	Time lags: recognition, decision, implementation
Automatic stabilisers act immediately	Political constraints: governments may pursue vote-winning rather than economically optimal policies
Multiplier can amplify the impact of spending	Crowding out: government borrowing may raise interest rates and reduce private investment
Effective in a liquidity trap when monetary policy is ineffective (Keynes, 1936)	Ricardian equivalence: rational consumers may save more if they expect future tax rises (Barro, 1974)
Can address market failure and provide public goods	Budget deficit leads to rising national debt and interest payments

Exam Tip: A 25-mark essay on fiscal policy should balance Keynesian arguments for active demand management with monetarist/classical criticisms. Always consider the context — fiscal policy is more effective in a deep recession with spare capacity than in a boom near full employment.

Fiscal Policy in the UK: Recent History

Year	Chancellor	Key Fiscal Action	Context
2008-09	Alistair Darling	VAT cut to 15%, bank bailouts	Global Financial Crisis
2010-15	George Osborne	Austerity: departmental cuts, VAT to 20%	Deficit reduction
2020	Rishi Sunak	Furlough scheme (CJRS), Eat Out to Help Out	COVID-19 pandemic
2022	Kwasi Kwarteng	Mini-budget: unfunded tax cuts	Cost of living crisis; reversed after market turmoil
2023	Jeremy Hunt	Fiscal tightening, windfall taxes	Restoring market credibility

The Kwarteng mini-budget (September 2022) is a critical case study. The announcement of £45 billion in unfunded tax cuts caused gilt yields to spike, the pound to fall sharply, and the Bank of England to intervene to prevent a pension fund liquidity crisis. This demonstrated the importance of fiscal credibility — markets must believe the government's fiscal plans are sustainable.

Summary

Fiscal policy uses government spending and taxation to manage AD.
Automatic stabilisers provide built-in counter-cyclical support.
Discretionary policy requires deliberate decisions and faces significant time lags.
The multiplier amplifies the impact of fiscal changes but may be smaller than theoretical estimates.
Fiscal credibility is essential — markets punish governments whose plans appear unsustainable.
The budget deficit (annual flow) and national debt (accumulated stock) are distinct concepts.