What Monopoly Depends On

Barriers to entry are the most critical dependency for maintaining a monopoly, as they prevent new competitors from entering the market and undermining the monopolist's power, as seen in the case of Microsoft's dominance in the operating system market, where the high cost of developing a competing operating system and the need for compatibility with existing software and hardware made it difficult for new entrants to challenge Microsoft's position.

Key Dependencies

• Economies of scale — large firms can reduce costs and increase efficiency, making it difficult for smaller firms to compete, and without economies of scale, a firm like Boeing would not be able to produce ~800 aircraft annually (Boeing annual report) and maintain its competitive edge, as evident in the failure of the Concorde project, which was not able to achieve economies of scale due to its limited production run and high development costs.
• Network effects — the value of a product or service increases as more people use it, creating a self-reinforcing cycle that makes it difficult for new entrants to compete, and without network effects, a firm like Facebook would not be able to maintain its dominant position in the social media market, as seen in the failure of Google+, which was not able to achieve the same level of network effects as Facebook.
• Government regulations — monopolies often rely on government regulations and subsidies to maintain their position, and without these regulations, a firm like AT&T would not have been able to maintain its monopoly in the telecommunications market, as seen in the case of the breakup of AT&T in 1984, which led to increased competition and innovation in the market.
• Brand recognition — a strong brand can create a barrier to entry for new firms, as consumers are often loyal to established brands and may be reluctant to switch to a new product or service, and without brand recognition, a firm like Coca-Cola would not be able to maintain its dominant position in the beverage market, as seen in the failure of New Coke, which was not able to achieve the same level of brand recognition as the original Coke formula.
• Access to resources — monopolies often have preferential access to resources such as raw materials, labor, and capital, which can make it difficult for new entrants to compete, and without access to resources, a firm like ExxonMobil would not be able to maintain its dominant position in the energy market, as seen in the case of the Venezuelan oil industry, which was not able to achieve the same level of access to resources as ExxonMobil.

Priority Order

The dependencies can be ranked in order of criticality as follows:

1. Barriers to entry, as they prevent new competitors from entering the market and undermining the monopolist's power, as seen in the case of Microsoft's dominance in the operating system market.
2. Economies of scale, as they allow large firms to reduce costs and increase efficiency, making it difficult for smaller firms to compete, as evident in the failure of the Concorde project.
3. Network effects, as they create a self-reinforcing cycle that makes it difficult for new entrants to compete, as seen in the failure of Google+.
4. Government regulations, as they can provide a monopolist with preferential treatment and protection from competition, as seen in the case of the breakup of AT&T.
5. Brand recognition, as it can create a barrier to entry for new firms, as seen in the failure of New Coke.
6. Access to resources, as it can provide a monopolist with a competitive advantage, as seen in the case of the Venezuelan oil industry.

Common Gaps

People often overlook the importance of institutional factors, such as government regulations and industry norms, in maintaining a monopoly, and assume that monopolies are solely the result of market forces, such as economies of scale and network effects, which can lead to a failure to recognize the role of institutional factors in maintaining a monopoly, as seen in the case of the breakup of AT&T, where the institutional factors that maintained the monopoly were not fully appreciated until after the breakup.