You Know MoreThan Your LastMark Says.
Exam-focused economics prep. 14,000 questions. 97% pass rate.
The clock starts.
Your mind goes blank.
You revised for weeks. You know externalities. But a 25-mark question still feels like a trap.
AQA A-Level Economics
Paper 2 · Section B
Question 3 (b)
Evaluate the view that a government should always intervene to correct market failure caused by negative externalities in production.
You have 30 minutes. Use diagrams where appropriate.
Answer space...
Most students lose 8–12 marks here. Not because they don't know the content.
See the model answerof students run out of time on 25-mark questions
average mark on evaluation questions without technique training
wasted per week re-reading notes that won't appear on the exam
Freeze the timer.
Follow the marks.
Every mark has a reason. Every paragraph has a job. Here's how a top examiner builds a 25/25 answer.
Define negative externality: third-party costs not reflected in market price (divergence of MPC and MSC).
Draw a correctly labelled externality diagram — MPC below MSC, welfare loss triangle shaded, Qm and Qopt identified.
Apply to a real context: carbon emissions from steel production — quantify if possible (UK ETS carbon price ~£50/tonne).
Analyse government intervention tools: Pigouvian tax shifts MPC curve upward to equal MSC, restoring Qopt. Compare to regulation and tradeable permits.
Evaluate limits: government failure (information asymmetry on exact external cost), regulatory capture, and impact on international competitiveness.
Counter-evaluate: even imperfect intervention may be better than market outcome — second-best theorem. Conclude with a justified, balanced judgement.
Marks secured so far
Key insight: 11 of 25 marks come from evaluation — the skill most students skip when revising. EconPrep trains evaluation first.
From shaky recall
to exam-day fluency.
Every level of difficulty. Every exam board. Every question type you'll face — with model answers that show exactly why marks are awarded.
Rapid-Fire MCQ
5,200 single-best-answer questions. Timed. Adaptive. Covers every AQA, Edexcel, IB, and AP topic cluster.
Diagram Drills
Supply-demand, IS-LM, Phillips Curve — label, draw, and annotate interactively. Stop blurring diagrams together under pressure.
15-Mark Essay Builder
Structure, evidence, and evaluation — built paragraph by paragraph. Model answers show exactly how examiners award Level 3 marks.
Full Timed Mocks
Exam-replica papers with real timing, mark schemes, and AI-assisted feedback on your written answers.
Adaptive Difficulty
The question bank tracks your weakest sub-topics and surfaces them 3× more often until confidence scores normalise.
Covers every major exam board
The marks are
already there.
97% pass rate isn't a promise — it's what happens when students stop revising content and start practising technique.
of students improve by at least one grade band
across all exam boards
exam questions in the bank
updated each academic year
average time to noticeable improvement
based on 2025 cohort data
"I'd been losing marks on evaluation for two years. EconPrep's mark-scheme breakdowns showed me exactly why — I was describing instead of judging. Went from a C to an A in six weeks."
Priya Mehta
A-Level Edexcel, Year 13
"The adaptive question bank is genuinely different. It kept surfacing Keynesian cross questions until I stopped getting them wrong. Felt like it actually knew my gaps."
Thomas Okafor
IB Economics HL, Grade 12
"University micro finals hit differently when you haven't done timed essays since A-level. EconPrep's 15-mark builders reminded me how to structure under pressure. First class in the end."
Caitlin Walsh
Second-year Economics, UCL
"The adaptive question bank is genuinely different. It kept surfacing Keynesian cross questions until I stopped getting them wrong. Felt like it actually knew my gaps."
Thomas Okafor
IB Economics HL, Grade 12
"University micro finals hit differently when you haven't done timed essays since A-level. EconPrep's 15-mark builders reminded me how to structure under pressure. First class in the end."
Caitlin Walsh
Second-year Economics, UCL
That quiet exhale
before the clock starts.
Ten questions. Two minutes. A personalized breakdown of exactly where you're losing marks — and how to stop.
Primary path
Find Your Weak Topics
Select your exam board. Answer 10 adaptive questions. Get a topic-by-topic confidence map and a study plan ranked by impact.
Select your exam board
AQA, Edexcel, IB, AP, or University Level
10 adaptive questions
Difficulty adjusts after each answer
Personalised topic breakdown
Confidence scores by sub-topic, with a study plan
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Secondary path
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AQA, Edexcel, OCR, IB Economics (HL & SL), AP Microeconomics, AP Macroeconomics, and university-level intermediate micro and macro.
Past papers repeat. Our adaptive bank generates question variants, tracks your performance, and surfaces weak sub-topics — not just the same papers every student uses.
Most students see measurable improvement (tracked by diagnostic scores) within 3–4 weeks of consistent daily practice sessions of 20–30 minutes.