How marketer differentiate between needs want and demand?

Marketers differentiate between needs, wants, and demand by understanding their distinct characteristics. Needs refer to basic human requirements essential for survival, such as food, shelter, and safety. Wants are specific preferences or desires for products or services that can satisfy those needs, influenced by culture and individual personality. Demand arises when consumers not only desire a product but also have the purchasing power to acquire it, reflecting their willingness and ability to buy.