She began to sketch. Demand and supply curves. A vertical wedge for the tax. The shrinking of consumer and producer surplus. And there it was—the Harberger triangle. Deadweight loss. Not just a term from a glossary, but a real loss of total welfare. She labeled everything: Pc for consumers, Pp for producers, Qt for quantity after tax, Qe for equilibrium.
Next, she pulled out Paper 2, November 2022. The insert was a news article about rising coffee prices in Vietnam due to a drought. The questions were brutal: calculate the PED, explain two supply-side factors, and evaluate the effectiveness of a price ceiling. Ib Econ Past Papers
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. She began to sketch
The first paper she pulled out was Paper 1, May 2023 (TZ2). The title alone sent a shiver down her spine. She remembered her teacher, Mr. Choudhury, saying, “The past paper is a mirror. It shows you what you actually know, not what you hope you know.” The shrinking of consumer and producer surplus
By the end of the night, she had done three papers. Her room was a sea of diagrams, evaluation points, and examiner’s notes scribbled in red. But something had changed. The exam was no longer a monster hiding in the dark. It was a predictable machine. Paper 1 was always theory and evaluation. Paper 2 was data response and real-world application. Paper 3 (HL) was calculation and policy.