What is a key feature of inelastic goods or services?

A key feature of inelastic goods or services is that the demand remains relatively stable regardless of price changes. Inelastic demand indicates that consumers will continue to purchase these goods or services even when their prices increase. This often occurs because the goods are considered necessities or lack readily available substitutes. For example, essential items like medicine or staple foods tend to have inelastic demand because people need them regardless of price fluctuations.

In contrast, the other choices illustrate characteristics not typical of inelastic goods. Large demand fluctuations in response to price changes suggest elastic demand where consumers are sensitive to price. Exclusive demand during limited supply typically refers to scarcity and not necessarily to inelasticity itself. Lastly, high competition in the market often leads to lower prices and more consumer options, which can contribute to elastic demand as consumers can easily switch to alternatives when prices rise.