Final answer:
A service without a tangible product, such as counseling, is known as a pure service. This type of service relies on intangible aspects, such as reputation and guarantees, to differentiate and add value, which are often influenced by advertising and consumer habits.
Step-by-step explanation:
When a tangible product is not included in a service, such as with counseling, it is called a pure service. A pure service is an economic product that is intangible, meaning it cannot be touched or physically measured. In contrast, a good is a tangible product that can be physically handled or consumed. Services may include various intangible aspects that add value and differentiate them, such as satisfaction guarantees, reputation for quality, and additional offerings like free delivery. These elements contribute to product differentiation, often influenced by advertising and brand loyalty, even though the core product itself may be virtually indistinguishable from competitors in blind tests.