GCSE CIE Economics: Monopolistic Competition | 垄断竞争 考点精讲

📚 GCSE CIE Economics: Monopolistic Competition | 垄断竞争 考点精讲

Monopolistic competition is a market structure that blends elements of both perfect competition and monopoly. It is one of the most common forms of real-world competition and a core topic in the GCSE CIE Economics syllabus. Understanding its characteristics, short-run and long-run equilibrium, efficiency implications, and the role of non-price competition is essential for exam success. This article provides a detailed breakdown of all key points, with paired English and Chinese explanations to help you master the topic.

垄断竞争是一种融合了完全竞争与垄断特征的市场结构。它是现实世界中最常见的竞争形式之一，也是 GCSE CIE 经济学课程的核心主题。掌握其特征、短期与长期均衡、效率内涵以及非价格竞争的作用，对考试成功至关重要。本文详细梳理所有关键考点，并提供对应的中英双语讲解，帮助你彻底攻克这一主题。

1. What is Monopolistic Competition? | 什么是垄断竞争？

Monopolistic competition describes a market where many firms sell differentiated products that are close substitutes for one another. Each firm holds a small degree of market power because of brand loyalty, real or perceived differences, and location. However, low barriers to entry and exit mean that supernormal profits tend to be competed away in the long run. Firms face a downward-sloping demand curve (AR), but it is relatively price elastic because many rivals offer similar alternatives. This structure lies between perfect competition and monopoly on the market spectrum.

垄断竞争指的是许多企业销售差异化的、相互接近替代品的产品市场。每家企业因品牌忠诚度、真实或感知的差异以及地理位置而拥有一定程度的市场势力。然而，进入和退出壁垒较低，意味着超额利润在长期往往被竞争所侵蚀。企业面临一条向下倾斜的需求曲线（平均收益曲线 AR），但由于众多对手提供相似的替代品，该曲线相对富有价格弹性。这种结构在市场图谱上处于完全竞争与垄断之间。

2. Key Characteristics | 核心特征

The main features of monopolistic competition can be summarised as follows: a large number of independent sellers and buyers, product differentiation (both real and imagined), low barriers to entry and exit, and extensive use of non-price competition such as advertising, branding, and loyalty programmes. These characteristics shape the firm’s revenue curves and its long-run adjustment process.

垄断竞争的主要特征可概括如下：大量独立的卖家和买家、产品差异化（真实的和感知的）、较低的进入与退出壁垒，以及广泛使用广告、

Published by TutorHao | GCSE Economics Revision Series | aleveler.com

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