Maya chose a question from Microeconomics: “Explain how the introduction of a per-unit tax on a good can lead to a deadweight loss. Using a diagram, evaluate whether governments should always tax demerit goods.”
Then she wrote: “While demerit goods (e.g., cigarettes) generate negative consumption externalities, taxation is not always the optimal solution. If demand is inelastic, the tax may not reduce quantity significantly, and deadweight loss may be small, but the tax becomes regressive.” She cited a real-world example: Singapore’s high tobacco taxes versus the black market in e-cigarettes. Ib Econ Past Papers
It was three days before the final IB Economics exam, and Maya had a problem. Not a problem of supply and demand—though her anxiety was certainly spiking—but a problem of strategy. Her textbook was highlighted into a rainbow blur, her flashcards had fused together in a coffee spill, and her brain could define “allocative efficiency” in her sleep. But she knew, deep down, that knowing the definition wasn’t enough. The IB didn’t ask for definitions. It asked for application . Maya chose a question from Microeconomics: “Explain how
When the timer buzzed, her hand was cramped, but her confidence was not. She compared her answer to the markscheme. She had missed one key point: the role of cross-elasticity of demand for substitutes. A point lost, but a lesson learned. It was three days before the final IB
So she did what any desperate HL student would do: she opened the creaking drawer of her desk, pulled out a thick, dog-eared folder, and began looking into IB Econ past papers.
The past papers had whispered their secrets to her.