Antitrust laws are statutes or regulations designed to promote free and open markets. They prohibit unfair competition, making it illegal for competitors in an industry to use unfair tactics, and preventing companies from abusing their monopoly power to force smaller competitors out of business. There are several of these laws in the U.S., and in this course, we'll discuss what those are, who they apply to, and why they're important. We'll also talk about various violations and who enforces them.