Oligopoly is a market structure characterized by a small number of large firms dominating the market, where firms are interdependent and often engage in no
Topic Synopsis
Oligopoly is a market structure characterized by a small number of large firms dominating the market, where firms are interdependent and often engage in non-price competition, product differentiation, and various forms of collusion.
Key Concepts & Core Principles
- Protectionism: Government policies (tariffs, quotas, subsidies, non-tariff barriers) that restrict international trade to protect domestic industries from foreign competition.
- Free Trade: The absence of barriers to trade, allowing goods and services to move freely across borders, based on the principle of comparative advantage.
- Trade Blocs: Groups of countries that agree to reduce or eliminate trade barriers among themselves, such as free trade areas (e.g., NAFTA/USMCA), customs unions (e.g., EU), and common markets.
- World Trade Organization (WTO): An international body that oversees global trade rules, resolves disputes, and promotes trade liberalisation through negotiations (e.g., the Doha Round).
- Terms of Trade: The ratio of export prices to import prices, indicating a country's trading position. An improvement means a country can buy more imports for the same quantity of exports.
Exam Tips & Revision Strategies
- Ensure you can evaluate and calculate concentration ratios.
- Be prepared to explain the kinked demand curve diagram to illustrate interdependence.
- Distinguish clearly between different types of collusion.
- Use diagrams where appropriate to support explanations of oligopolistic behaviour.
Examiner Marking Points
- Characteristics of oligopoly
- Non-price competition
- Interdependence and the kinked demand curve
- Types of collusion
- Product differentiation
- Concentration ratios
- Advantages and disadvantages of oligopoly markets