What is the rules that prevent the creation and behavior of monopolies?

Antitrust laws are designed to prevent the creation and behavior of monopolies by promoting competition and limiting anti-competitive practices. Key regulations, such as the Sherman Act and the Clayton Act in the United States, prohibit actions like price-fixing, market division, and unfair business practices that could stifle competition. These laws empower regulatory bodies, such as the Federal Trade Commission (FTC) and the Department of Justice (DOJ), to investigate and challenge monopolistic behavior, ensuring a fair marketplace for consumers and businesses alike.