What term describes the rivalry between two or more companies for consumer dollars?

The term that best describes the rivalry between two or more companies for consumer dollars is competition. In a competitive environment, businesses strive to attract customers by offering better products, lower prices, superior service, or innovative marketing strategies. This rivalry drives companies to improve their offerings and can lead to advancements in quality and efficiency, benefiting consumers through a wider variety of choices and potentially better prices.

Other terms like market share, collaboration, and monopoly describe different concepts. Market share refers to the portion of sales a company controls in a specific market, not directly indicating rivalry. Collaboration involves companies working together, which contrasts with the concept of competition. Monopoly describes a market structure where a single company dominates or controls the entire market, eliminating competition. Hence, competition is the most accurate term to capture the essence of this rivalry in the marketplace.