Being the diligent students that you are, your mind would have already been ingrained with the law of demand.
Specifically, the law of demand states that as the price of a good or service increases, the quantity demanded by consumers decreases, and vice versa.
However, the law of demand does not always hold true in every situation. There are some cases where the quantity demanded of a good or service increases as its price increases or decreases as its price decreases.
These cases are known as the exceptions to the law of demand.