Final answer:
Customers for service-producing businesses can be households purchasing for personal use, firms engaged in business operations, and non-profit organizations seeking to fulfill their missions without profit motives.
Step-by-step explanation:
A type of customer for certain service-producing businesses or institutions consists of households in the goods market, firms in the goods market, and non-profit organizations. Households participate by purchasing goods and services for personal use, firms engage in transactions related to business operations, and non-profit organizations may purchase goods and services to fulfill their mission of bettering lives or improving outcomes without the intention of making a profit.
When households purchase services from the firms, this is considered consumer expenditure. On the other hand, firms may also act as customers when they require services to support their business activities. Non-profit organizations, although not aiming for profit, still partake in the market to achieve their goals, whether that involves education, health, or community welfare.