The price elasticity of demand refers to how sensitive demand for certain goods or services is in the event of price changes. Here, percentage values are ascertained and compared for both the price change and the change in demand.
A price increase normally leads to a decline in demand, as consumers no longer want or can afford to spend money on the product or service in question. Likewise, a price cut often results in greater demand. In these cases, we can observe price-elastic demand because the demand strongly depends on pricing and can fluctuate accordingly.
A different picture can be seen when prices increase for vital goods like basic food products, vital medicines or rented housing. Consumers can’t simply go without these products or switch to substitutes. As a result, demand remains stable even in the event of price increases – indicating price-inelastic demand.