The price elasticity of demand for Coca-Cola is discussed in the assignment content. It is stated that the supply increases downwards when the machine breaks down, leading to a decrease in the price of Coke. The availability of substitutes such as Pepsi and other aerated drinks also affects the price elasticity. The demand for Coca-Cola is shown to be less elastic than Pepsi, suggesting that it has a stronger brand preference. The impact of consumer responsiveness to price changes on the firm's pricing decisions and revenue growth is assessed. It is concluded that the firm needs to keep an eye on prices and consider the elasticity of their products in order to make informed pricing decisions.