Sam regularly buys and drinks sugary soft drinks. The NHS later pays to treat the tooth decay that these drinks caused. Which statement best describes this NHS treatment cost?
An external cost of consumption
A private cost of consumption
An external cost of production
A private cost of production
83 exam-style questions on AQA GCSE Economics 1.6 Market failure, covering 1.6.1a Market failure as misallocation of resources, 1.6.1b Government intervention, 1.6.2a Defining externalities, and 1.6.2b Positive and negative externalities. Each one has a worked solution and a mark scheme showing where the marks go.