Access to public parks and community gardens is increasingly recognized as vital for urban populations. Many urban planners and economists argue that local authorities should fully fund or heavily subsidise municipal green spaces because they generate a substantial positive externality that benefits the wider community, such as improved mental health and reduced pressure on public healthcare systems.
However, metropolitan areas continue to see a steady loss of public green spaces due to commercial development. Councils have frequently sold off community land to private developers to generate short-term revenue to balance municipal budgets. Office hubs, retail parks, and high-rise apartments now stand where vibrant natural habitats once existed.
This loss of green space has contributed to rising urban stress and sedentary lifestyles. Local environmental groups are advocating for creative solutions, such as converting disused rooftops and alleyways into 'pocket parks' to foster biodiversity and recreation. Ultimately, the presence of accessible natural spaces helps mitigate pollution and fosters community cohesion, which are valuable public assets.
Define the term 'positive externality' (Extract D, paragraph 1).
378 exam-style questions on AQA A Level Economics 1.8 The market mechanism, market failure and government intervention in markets, covering 1.8.1 How markets and prices allocate resources, 1.8.2 The meaning of market failure, 1.8.3 Public goods, private goods and quasi-public goods, 1.8.4 Positive and negative externalities in consumption and production, 1.8.5 Merit and demerit goods, 1.8.6 Market imperfections, 1.8.7 Competition policy (A-level only), 1.8.8 Public ownership, privatisation, regulation and deregulation of markets (A-level only), 1.8.9 Government intervention in markets, and 1.8.10 Government failure. Each one has a worked solution and a mark scheme showing where the marks go.