Which one of the following gives a positive value for the cross elasticity of demand?
A rise in the price of domestic gas boilers decreases the demand for central heating installation services
A fall in the price of smart tablet devices increases the demand for protective tablet cases
A rise in the price of petrol decreases the demand for high-emission sports cars
A rise in the price of electric vehicles increases the demand for hybrid vehicles
256 exam-style questions on AQA A Level Economics 1.3 Price determination in a competitive market, covering 1.3.1 The determinants of the demand for goods and services, 1.3.2 Price, income and cross elasticities of demand, 1.3.3 The determinants of the supply of goods and services, 1.3.4 Price elasticity of supply, 1.3.5 The determination of equilibrium market prices, and 1.3.6 The interrelationship between markets. Each one has a worked solution and a mark scheme showing where the marks go.