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What do supply and demand curves represent? Show how they can be used to illustrate how markets clear. Using appropriate diagrams, show how changes in demand and supply lead to changes in price and output, giving examples from real life.  

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What do supply and demand curves represent? Show how they can be used to illustrate how markets clear. Using appropriate diagrams, show how changes in demand and supply lead to changes in price and output, giving examples from real life. Prices are used in a free-market economy as a key instrument to relay information from buyers to sellers and vice-versa. The use of demand and supply curves illustrate and explore this 'price mechanism' in greater detail. A demand curve, in essence, is a diagrammatic representation of its relationship with price. This relationship that demand has with price is known as the law of demand which states that as price for a product increases, the demand for it will decrease, meaning there is an inverse relationship between demand and price. In general then, diagrammatically, demand curves are downward sloping: As a result, the amount of the product demanded will depend on...

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