Fiscal Policy
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Fiscal Policy involves the use of government spending and taxation (revenue) to influence aggregate demand in the economy
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Fiscal policy can be expansionary in order to generate further economic growth
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Expansionary policies include reducing taxes or increasing government spending
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Fiscal policy can be contractionary in order to slow down economic growth or reduce inflation
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Contractionary policies include increasing taxes or decreasing government spending
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Fiscal Policy is usually presented annually by the Government through the Government Budget
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A balanced budget means that government revenue = government expenditure
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A budget deficit means that government revenue < government expenditure
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A budget surplus means that government revenue > government expenditure
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A budget deficit has to be financed through public sector borrowing
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This borrowing gets added to the public debt
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Macroeconomic & Microeconomic Impacts of Fiscal Policy
Macroeconomic impacts
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Fiscal policy is used to help the government achieve their macroeconomic objectives
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Specifically, the use of fiscal policy aims to
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Maintain a low and stable rate of inflation
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Maintain low unemployment
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Reduce the business cycle fluctuations
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Create a stable economic environment for long-term economic growth
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Redistribute income so as to ensure more equity
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Control the level of exports and imports (net external balance)
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When a policy decision is made, it creates a ripple effect through the economy, impacting the macroeconomic objectives of the government
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Changes to fiscal policy can influence several of the components of AD
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A change to any component of AD helps to achieve at least one of the goals of fiscal policy
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Microeconomic impacts
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Fiscal policy includes making changes to policies such as taxes and subsidies
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Income tax cuts can influence labour to be more productive
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Tax cuts can encourage firms to increase output or be more entrepreneurial
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Subsidies can lower costs of production in the industry, leading to higher output
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Fiscal Policy and Aggregate Demand
Expansionary fiscal policy
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Expansionary fiscal policies include reducing taxes or increasing government spending with the aim of increasing AD
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AD = household consumption (C) + firms investment (I) + government spending (G) + exports (X) – imports (M)
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AD = C + I + G + (X – M)
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Expansionary fiscal policy aims to shift aggregate demand (AD) to the right
Diagram: expansionary fiscal policy

Diagram analysis
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The economy is initially in macroeconomic equilibrium AP1Y1: there is a recessionary gap
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The Government wants to boost economic growth and lowers the rate of income and corporation taxes
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Lower taxes cause investment and consumption to increase, which are components of AD
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Aggregate demand increases from AD→ AD1
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The economy reaches a new equilibrium at AP2Y2 – a higher average price level and a greater level of national output
Examples of the Impact of Expansionary Fiscal Policy
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Example 1: The Government decreases corporation tax |
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Effect on the economy |
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Impact on macroeconomic aims |
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Example 2: The Government increases unemployment benefits |
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Effect on the economy |
Household income increases → consumption increases → AD increases |
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Impact on macroeconomic aims |
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Contractionary fiscal policy
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Contractionary fiscal policies include increasing taxes or decreasing government spending with the aim of decreasing AD
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AD= household consumption (C) + firms investment (I) + government spending (G) + exports (X) – imports (M)
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AD = C + I + G + (X – M)
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Changes to fiscal policy can influence government spending or consumption or investment
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Changing taxation can influence household consumption and the investment by firms
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Contractionary fiscal policies aims to shift aggregate demand (AD) to the left
Diagram: contractionary fiscal policy

Diagram analysis
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The economy is initially in macroeconomic equilibrium AP1YFE – an inflationary output gap is developing
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The economy is booming and the Government wants to lower inflation towards its target of 2%
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The Government increases the rate of income tax
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Higher tax rates cause households to have less discretionary income, causing consumption to decrease
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Aggregate demand decreases from AD1→ AD2
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The economy reaches a new equilibrium at AP2Y1 – a lower average price level and a smaller level of national output
Examples of the Impact of Contractionary Fiscal Policy
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Example 1: The Government increases the rate of income tax |
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Effect on the economy |
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Impact on macroeconomic aims |
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Example 2: The Government freezes/reduces public sector workers pay |
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Effect on the economy |
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Impact on macroeconomic aims |
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Example 3: The Government cuts Government Spending in their Budget |
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Effect on the economy |
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Impact on macroeconomic aims |
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Fiscal Policy & Aggregate Supply
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Many fiscal policies have the ability to improve the productive potential (supply-side) of an economy
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E.g. Education subsidies to help the poorest households constitute an annual expenditure for the government. However, in the long term, they help to improve human capital, which boosts productivity and output
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The fiscal policy is short-term (annually); however, the supply-side impact occurs in the long term
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The Influence of Taxation & Spending on Economic Activity
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Government spending and taxation influence the level of economic activity
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Government spending is an injection and increases economic activity
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Taxation is a withdrawal and decreases economic activity
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The government budget is usually set once a year
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This fiscal policy then operates automatically in the background producing a stabilising effect as the economic activity fluctuates
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Automatic stabilisers are automatic fiscal changes that occur as the economy moves through stages of the business/trade cycle
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Responses