Revise a topic. Then practise that exact skill.
Choose a concise IB revision path, test your understanding, then enter the matching free practice session. SL and HL routes are clearly labelled.
Open the IB portal →Elasticities: use the number, then explain the decision
Elasticity is about responsiveness. In an IB answer, calculate accurately, interpret the value, then apply it to revenue, taxation, consumer behaviour or a firm’s decision.
Circular flow, the multiplier and AD/AS
Follow the spending first. Then decide whether the economy has spare capacity before claiming that an injection raises real output rather than mostly prices.
Trade and globalisation: evaluate who gains, who adjusts
The best trade answers distinguish absolute advantage from comparative advantage, then evaluate how gains and costs are distributed across workers, firms and countries.
Market failure: identify the wedge, then evaluate the remedy
Market failure is not simply “a bad market”. Show why private incentives differ from social welfare, explain the policy mechanism, then evaluate practical limitations.
Market structures: power, efficiency and regulation
Do not treat competition as automatically good or monopoly as automatically bad. Compare price, output, efficiency, innovation and the realities of the industry.