Which of the following is an example of composite demand?
A rise in the demand for electric vehicles leads to a higher demand for lithium miners.
An increase in the demand for corn to produce ethanol fuel reduces the available supply of corn for animal feed.
A fall in the price of cameras leads to an increase in the demand for memory cards.
A rise in the price of rail tickets leads to an increase in the demand for coach travel.
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.