These barriers include: economies of scale that lead to natural monopoly; control of a physical resource; legal restrictions on competition; patent, trademark and copyright protection; and practices to intimidate the… The laws that protect intellectual property include patents, copyrights, trademarks, and trade secrets.

A natural monopoly arises when economies of scale persist over a large enough range of output that if one firm supplies the entire market, no other firm can enter without facing a cost disadvantage Barriers to entry prevent or discourage competitors from entering the market.

monopoly — a situation in which one firm produces all of the output in a market. copyright — a form of legal protection to prevent copying, for commercial purposes, original works of authorship, including books and music. intellectual property — the body of law including patents, trademarks, copyrights, and trade secret law that protect the right of inventors to produce and sell their inventions. natural monopoly — economic conditions in the industry, for example, economies of scale or control of a critical resource, that limit effective competition.