An airport builds a second runway so that more flights can take off and land each day.
Which effect of the new runway is a negative externality?
Higher landing charges paid by airlines using the runway
Wages paid to the extra staff the airport employs
Noise disturbing people in villages beneath the flight path
Faster trade links for local firms that export by air
127 exam-style questions on OCR GCSE Economics 3.8 Limitations of markets, covering 3.8.1 Positive and negative externalities, 3.8.2 Policies to correct externalities, 3.8.3 Impact of externality policies, and 3.8.4 Costs and benefits of externality policies. Each one has a worked solution and a mark scheme showing where the marks go.