A-LevelEconomicsExternalities / Market FailureOct/Nov 2019Paper 3 Q11 Mark
What is not an example of an externality? A A new firm is established in an area and pays its workers higher wage rates than other firms. B The flowers planted by a householder in his garden give pleasure to his neighbours. C The immunisation of children against smallpox reduces the danger of the risk of infection to others. D The installation of security cameras in a city centre results in an increase in thefts elsewhere.
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
🎯 Mark Scheme Breakdown
Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.
🔒
Unlock the Examiner's Analysis
Sign up for free to reveal the full examiner report, trap analysis, and mark scheme breakdown for this question.
Sign Up Free to Unlock →Join thousands of Cambridge students already using Oracle Prep