Final answer:
The Robinson-Patman Act is a federal law in the United States that prevents unfair price discrimination. It requires suppliers to adjust prices to meet competition and prohibits preferential pricing that harms competition.
Step-by-step explanation:
The Robinson-Patman Act is a federal law in the United States that aims to prevent unfair price discrimination that harms competition. While the Act does not require suppliers to sell the same item, in the same quantity, to all customers at the same price, it prohibits suppliers from giving preferential pricing to certain customers if it negatively impacts competition. In essence, the Act requires suppliers to meet competition by adjusting prices when necessary.