Last-minute Economics Revision 2026

Using AI to analyse the past five Leaving Cert Economics Exams, this is a list of the 30 most commonly examined concepts, ordered by frequency and recurrence across both Section A and Section B.

1. Demand and Supply / Market Equilibrium

Appears repeatedly through shifts, equilibrium changes, price controls, market intervention, housing, labour and product markets.

2. Price Elasticity of Demand (PED):

Calculations, interpretation, revenue implications, business decisions.

3. Government Intervention in Markets:

Taxes, subsidies, rent caps, minimum pricing, regulation.

4. Market Failure:

Externalities, social costs/benefits, alcohol, environment, housing.

5. Inflation:

Cost-push, demand-pull, causes and impacts.

6. Labour Market and Employment:

Derived demand, wages, unemployment impacts.

7. Taxation:

Direct vs indirect tax, taxation principles, behavioural taxes.

8. Sustainability / Environmental Economics:

Carbon reduction, climate policy, sustainable development.

9. Opportunity Cost:

PPF questions and government spending decisions.

10. Production Possibility Frontier (PPF):

Opportunity cost, efficiency, impossible points.

11. Market Structures:

Monopoly, oligopoly, perfect competition.

12. Costs and Revenue Theory:

Fixed, variable, average, marginal costs.

13. National Income Measures:

GDP, GNP/GNI, welfare indicators.

14. Government Spending and Fiscal Policy:

Budget choices, expenditure priorities.

15. Economic Growth and Development:

Welfare, competitiveness, policy measures.

16. Multiplier Effect:

Calculations and wider economic effects.

17. Foreign Direct Investment (FDI):

Importance to Ireland and economic effects.

18. International Trade:

Brexit, exports, exchange rates.

19. Monetary Policy:

ECB, interest rates, Eurozone membership.

20. Circular Flow of Income:

Injections and leakages.

21. Factors of Production:

Land, labour and derived demand.

22. Cost-Benefit Analysis:

Public projects and government decisions.

23. Income Distribution / Inequality:

Gender pay gap, housing access, living wage.

24. Housing Market Economics:

Rent controls, homelessness, housing supply.

25. External Costs and External Benefits:

Solar panels, alcohol consumption, pollution.

26. Utility Theory:

Marginal utility, diminishing utility, consumer equilibrium.

27. Exchange Rates:

Appreciation/depreciation and trade effects.

28. Demographics and Population Changes:

Ageing population, labour implications.

29. Subsidies and Price Supports:

Agriculture and government support.

30. Economic Welfare and Living Standards:

GDP vs welfare, quality of life measures.