4. The Demand Curve Price (£) Quantity Demanded (000s) Demand £10 £5 100 150 The demand curve slopes downwards from left to right (a negative slope) indicating an inverse relationship between price and the quantity demanded. Demand will be higher at lower prices than at higher prices. As price falls, demand rises. As price rises, demand falls.
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8. The Demand Curve 5 Price (£) Quantity Demanded (000s) Demand £10 100 D1 D2 10 200 Changes in any of the factors affecting demand other than price cause the entire demand curve to shift to the left (less demanded at each price) or to the right (more demanded at each price).
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11. The Supply Curve Price £ Quantity Bought and Sold (000s) Supply £3 200 £7 800 The supply curve slopes upwards from left to right indicating a positive relationship between supply and price. As price rises, it encourages producers to offer more for sale whereas a fall in price would lead to the quantity supplied to fall.
12. The Supply Curve Price £ Quantity Bought and Sold (000s) Supply £4 400 S1 100 S2 900 Changes in any of the factors affecting supply other than price will cause the entire supply curve to shift. A shift to the left results in a lower supply at each price; a shift to the right indicates a greater supply at each price.
13. The Market Price (£) Quantity Bought and Sold (000s) S D £5 600 D1 300 Surplus £3 450 A shift in the demand curve to the left will reduce the demand to 300 from 500 at a price of £5. Suppliers do not have the information or time to adjust supply immediately and still offer 600 for sale at £5. This results in a market surplus (S > D) In an attempt to get rid of surplus stock, producers will accept lower prices. Lower prices in turn attract some consumers to buy. The process continues until the surplus disappears and equilibrium is once again reached.
14. The Market Price (£) Quantity Bought and Sold (000s) S D £5 600 S1 100 Shortage £8 350 A shift in the supply curve to the left would lead to less products being available for sale at every price. Suppliers would only be able to offer 100 units for sale at a price of £5 but consumers still desire to purchase 600. This creates a market shortage. (S < D) The shortage in the market would drive up prices as some consumers are prepared to pay more. The price will continue to rise until the shortage has been competed away and a new equilibrium position has been reached.
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