Ib Econ Past Papers Today

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.

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.”

At first, she froze. Her mind was a tangle of elasticities and externalities. But then she forced herself to look past the panic and look into the structure of the question. The command terms: “Explain” (10 marks) and “Evaluate” (15 marks). The hidden trap: students often forget that “always” is the keyword in part (b). The IB examiners loved an absolute. Ib Econ Past Papers

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.”

Maya highlighted the article like a surgeon. She underlined: “Farmers are switching to durian production.” That was opportunity cost. “Global demand for robusta beans has surged.” That was a demand shifter. The calculation? 12% price increase, 8% quantity decrease. PED = -0.67. Inelastic. She began to sketch

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.

On exam day, Maya walked into the hall not with fear, but with familiarity. When she opened Paper 1 and saw a question on indirect taxes and subsidies, she smiled. She had written that exact evaluation point about the regressive nature of taxes three nights ago. The shrinking of consumer and producer surplus

She wrote steadily. Diagrams first. Then definitions. Then real-world examples: carbon taxes in Sweden, sugar taxes in Mexico. For evaluation, she used the “depends on” framework: “The effectiveness depends on the elasticity of demand, the presence of merit good alternatives, and the government’s ability to enforce the tax.”