New production methods increase the market supply of water-filter jugs. Table 1 shows the market before and after the change. Quantities are thousands of jugs per month.
| Price per jug | Quantity demanded | Quantity supplied before the change | Quantity supplied after the change |
|---|---|---|---|
| £36 | 8 | 14 | 18 |
| £30 | 10 | 10 | 16 |
| £24 | 12 | 8 | 12 |
| £18 | 14 | 6 | 10 |
Replacement filter cartridges are complementary goods to water-filter jugs. Using Table 1, explain whether the equilibrium price and the equilibrium quantity of replacement filter cartridges are likely to rise or fall as a result of the change in the market for water-filter jugs.
236 exam-style questions on AQA GCSE Economics 1.3 How prices are determined, covering 1.3.1a Demand and the factors that influence it, 1.3.1b The demand curve, 1.3.2a Supply and the factors that influence it, 1.3.2b The supply curve, 1.3.3a Determining equilibrium price, 1.3.3b Applying diagrams and showing revenue, 1.3.4a Complements and substitutes, 1.3.4b Effects of changes on related markets, 1.3.5a Price elasticity of demand, 1.3.5b Factors affecting price elasticity of demand, 1.3.5c Measuring PED and its implications, 1.3.6a Price elasticity of supply, 1.3.6b Factors affecting price elasticity of supply, and 1.3.6c Measuring PES and its implications. Each one has a worked solution and a mark scheme showing where the marks go.