What is the difference between quantity demanded and quantity bought?

Quantity demanded refers to the amount of a good or service that consumers are willing and able to purchase at a specific price during a given time period. It is influenced by factors such as price changes and consumer preferences. In contrast, quantity bought refers to the actual amount that consumers purchase, which can vary due to availability, market conditions, or individual purchasing decisions. Essentially, quantity demanded is a theoretical concept, while quantity bought reflects real market transactions.