Barriers to Entry:Barriers to entry are factors that make it difficult for new firms to enter a market and compete with existing firms, often allowing incumbents to maintain a monopolistic or oligopolistic position.
Regulation: Regulation refers to the rules and guidelines established by government agencies or other authorities to control and oversee various economic activities and industries.
Monopoly:A monopoly is a market structure where a single supplier dominates the market, often due to barriers to entry, allowing the monopolist to set prices and control the supply of a good or service.