Which of the following changes is most likely to cause the demand curve for residential heat pumps to shift to the left?
A substantial rise in the unit price of domestic electricity
A significant reduction in the retail market price of residential heat pumps
An increase in the government subsidy awarded to domestic insulation installations
A nationwide increase in the tariff for mains natural gas
45 exam-style questions on OCR A Level Economics Demand. Each one has a worked solution and a mark scheme showing where the marks go.