An Evaluation of Fiscal Policy (HL IB Economics)
Revision Note
Strengths of Fiscal Policy
Spending can be targeted at specific industries
It can be highly effective in restoring confidence in an economy during a deep recession
Redistributes income through taxation
Reduces negative externalities through taxation
Increased consumption of merit/public goods
Short term government spending can lead to an increase in the aggregate supply of an economy
E.g. Building a new airport immediately increases government spending and AD, but when it is built, the potential output will have increased (Production Possibility Curve has shifted outward)
Automatic Stabilisers as a Strength of Fiscal Policy
Automatic stabilisers are automatic fiscal changes that occur as the economy moves through stages of the business/trade cycle
The impact of automatic stabilisers on an economy during a boom and recession
1. Effect in a recession
In a recession, there will (automatically) be lower tax revenue due to the nature of progressive taxation - as incomes fall households are taxed less
In a recession, as unemployment rises, the government will pay higher unemployment benefits / transfer payments which households will then be used for consumption
Both of the above will result in real GDP being higher than it would otherwise have been
2. Effect in a boom
In a boom, there will (automatically) be higher tax revenue due to the nature of progressive taxation - as incomes rise households are taxed more
In a boom, as unemployment falls the government will pay less unemployment benefits / transfer payments which households which then does not get generate increased consumption
Both of the above will result in real GDP being lower than it would otherwise have been
This is effectively an automatic disinflationary effect
Weaknesses of Fiscal policy
Political pressures: Policies can fluctuate significantly when new governments are elected
Long term infrastructure projects may lack follow-through
Unsustainable debt: Increased government spending can create budget deficits which are added to the national debt
Repaying this debt may lead to austerity on future generations
Conflicts between objectives
E.g. Cutting taxes to increase economic growth may cause inflation
Time lags: It is difficult to predict exactly when the desired effect on the economy will occur. Fiscal policy also takes a longer time to plan and implement than monetary policy
Government budgets are usually presented once a year whereas monetary policy adjustments can take place 4-8 times per year
Crowding Out as a Weakness of Fiscal Policy
Crowding out refers to a phenomenon where expansionary fiscal policy, particularly government spending, can result in a reduction of private sector spending or investment
Government borrowing results in competition with others in the economy who want to borrow the limited amount of savings available
This competition causes the real interest rate to rise and private investment decreases (is crowded out)
The diagram on the left shows how government borrowing increases interest rates, resulting in a fall in AD in the diagram on the right as private firms are crowded out of the market
Diagram Analysis
Increased government borrowing causes the demand for money in the loanable funds market to increase from DM1 →DM2
This extra demand raises interest rates from R1→R2
The government increases their spending using the borrowed funds and aggregate demand in the economy increases from AD1→AD2
The increase in AD is greater than the actual value of the injection due to the Keynesian multiplier
Private firms are put off from borrowing loanable funds due to the increased rate of interest and investment falls
As investment falls, aggregate demand decreases, shifting back to AD3
Private firms have been crowded out of the market by the governments actions
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