Scarcity is a measure of supply. If strawberries are scarce, then the supply of strawberries is low. And if many people want to buy strawberries when none are available, then demand is high because of a low supply caused by scarcity.

Scarcity is how little of something is available. It forces us to make choices, like how much of something to buy or how much money to spend on something.

Scarcity can be used to describe an economic situation in economics, or it can be used to describe more general situations. In economics, scarcity is the result of people having "Unlimited Wants and Needs," or always wanting something new, and having "Limited Resources."

Scarcity is important for understanding how goods and services are valued. Things that are scarce, like gold, diamonds, or certain kinds of knowledge, are more valuable for being scarce because sellers of these goods and services can set higher prices.