Monopoly
Overview
A monopoly (독점, Monopoly) refers to a state in which there is only one supplier (firm) for a particular product or service in the market, or a small number of suppliers dominate the market, effectively excluding competition. Monopolistic firms can obtain excess profits through pricing power, supply control, and barriers to market entry, but this can lead to negative economic consequences such as reduced consumer welfare, inefficient resource allocation, and slowed technological innovation. Therefore, most countries operate legal mechanisms (fair trade laws, antitrust laws) to regulate monopolies and promote competition.
Main Content
Types of Monopoly
1. Natural Monopoly: Occurs in industries where a single firm supplying the entire market achieves the lowest average cost (e.g., large-scale infrastructure such as electricity, water, and railways). Economies of scale are maximized, making competition among multiple firms inefficient.
2. Artificial Monopoly: Formed through artificial barriers such as patents, copyrights, government licenses, trade secrets, and strategic mergers and acquisitions. Example: pharmaceutical patents, exclusive control of raw materials.
3. State Monopoly: The government directly operates a specific industry or grants monopoly rights (e.g., postal services, tobacco, gambling).
4. Oligopoly: A market structure dominated by a small number of firms, which may pursue monopolistic profits through collusion or price leadership.
Economic Effects of Monopoly
- Price Increase: Due to the absence of competition, a monopolistic firm sets prices higher than marginal cost, converting consumer surplus into firm profits.
- Reduced Output: To maximize profits, a monopolistic firm produces less than in a competitive market, resulting in a deadweight loss to social welfare.
- Decreased Innovation: The lack of competitive pressure weakens incentives for technological development and efficiency improvements.
- Income Redistribution: Wealth is transferred from consumers to monopoly firm owners.
Monopoly Regulation Policies
- Easing Entry Barriers: Abolishing government regulations, limiting patent durations, opening up licenses.
- Price Regulation: Setting prices at marginal cost or regulating the rate of return for natural monopolies.
- Conduct Regulation: Prohibiting unfair practices such as collusion, market division, and predatory pricing.
- Structural Separation: Breaking up vertically integrated firms (e.g., cases of AT&T, Microsoft).
- Establishment of State-owned Enterprises: The government directly operates monopolistic firms to pursue public interest.
Historical Examples of Monopoly
- Standard Oil: Controlled over 90% of the U.S. oil market in the late 19th century; broken up into 34 companies under antitrust law in 1911.
- Microsoft (1990s): Faced antitrust lawsuits for monopolizing the PC operating system market; reached a settlement in 2001 with some sanctions.
- Google (Modern): Holds a 90% share of the search advertising market; fined €8.2 billion by the EU (2018).
Recent Trends
As of 2024-2025, global monopoly regulation is focused on big tech companies (Google, Apple, Meta, Amazon, Microsoft). The U.S. FTC and DOJ are intensifying antitrust lawsuits, taking legal action against Google's search monopoly, Apple's App Store fees, and Amazon's discrimination against third-party sellers. The EU is implementing the Digital Markets Act (DMA) to pre-regulate monopolistic practices of gatekeeper platforms, with investigations into Apple and Meta intensifying in 2024. South Korea's Fair Trade Commission strengthened sanctions in 2024 against the abuse of market dominance by delivery platforms (e.g., Baedal Minjok) and is pushing for the introduction of the Platform Fair Competition Promotion Act in 2025. Additionally, concerns over NVIDIA's GPU monopoly (market share over 80%) in the AI market have prompted investigations by the U.S. and EU. In the natural monopoly sector, issues of power grid monopoly are emerging during the transition to renewable energy, sparking active discussions on distributed power systems and deregulation of monopolies.
Related Topics
- [[Fair Trade Act]]
- [[Oligopoly]]
- [[Market Failure]]
- [[Natural Monopoly]]
- [[Antitrust Policy]]
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