Fiscal policy is the government’s toolbox for nudging the economy. By adjusting taxes and spending, the state can influence how much people spend, save, and invest.
Taxes are the main source of government income. Think of it as a big magnet that pulls money into the public purse.
💡 Formula: \$T = t \times Y\$ – where T is total tax revenue, t is the tax rate, and Y is national income.
Example: If the government sets a 20 % income tax and the country earns \$1 trillion, revenue = \$200 billion.
Exam Tip: Remember to link tax revenue to the budget deficit or surplus. A higher tax rate can reduce the deficit if spending stays constant.
Some goods are harmful (e.g., cigarettes, sugary drinks). Higher taxes make them more expensive, reducing consumption.
Analogy: Imagine a toll booth on a highway that charges more for cars with high emissions. Fewer cars use that lane.
Exam Tip: Use the price elasticity of demand to explain how a tax shift affects consumption of demerit goods.
Import duties raise the price of foreign goods, making domestic products more attractive.
Analogy: Think of a border gate that charges a fee for cars entering the city. Cars stay inside, boosting local businesses.
Exam Tip: Discuss the impact on the current account and potential retaliation by trading partners.
Progressive taxes (higher rates for higher incomes) help reduce inequality.
Example: A 5 % tax on incomes up to \$30 k, 15 % on \$30–\$70 k, and 30 % above \$70 k.
Result: Wealthier households pay more, funds are used for welfare, education, and health.
Exam Tip: Relate redistribution to the Gini coefficient or poverty rates in exam questions.
Tax cuts increase disposable income, boosting consumption and aggregate demand.
Analogy: A tax cut is like a free pizza party – everyone gets more to spend.
Exam Tip: Use the Keynesian multiplier: ΔY = (1/(1‑MPC)) × ΔT, where MPC is the marginal propensity to consume.
Carbon taxes or eco‑levies make polluting activities costlier, encouraging greener choices.
Example: A $50 per ton CO₂ tax on factories.
Result: Firms invest in cleaner technology, and consumers shift to low‑carbon products.
Exam Tip: Discuss the concept of a Pigouvian tax and its role in correcting externalities.
| Purpose | Main Effect | Example |
|---|---|---|
| Revenue | Funds public services | Income tax |
| Discourage demerit goods | Lower consumption | Cigarette tax |
| Reduce imports | Boost domestic industry | Import duty on cars |
| Redistribute income | Reduce inequality | Progressive income tax |
| Influence demand | Stimulate growth | Tax cuts during recession |
| Environmental sustainability | Encourage green choices | Carbon tax |