V2EX perfect competition

Perfect Competition

释义 Definition

完全竞争(市场):一种理想化的市场结构,特点是买卖双方数量众多、产品同质、信息充分、市场自由进入与退出、单个企业无法影响市场价格,因此企业只能“接受价格”(price taker),长期均衡时经济利润趋近于零。该术语也常与 perfectly competitive market 同义使用。

发音 Pronunciation (IPA)

/pfkt kmptn/

例句 Examples

In perfect competition, firms are price takers.
在完全竞争市场中,企业是价格接受者。

If entry is free, perfect competition drives long-run economic profits toward zero as new firms enter when profits appear.
如果进入市场是自由的,完全竞争会使长期经济利润趋近于零,因为一旦出现利润,新企业就会进入。

词源 Etymology

perfect 源自拉丁语 perfectus(“完成的、完善的”),在经济学中引申为“条件完全满足、没有缺陷”的理想状态;competition 源自拉丁语 competere(“共同追求/争夺”)。合在一起表示“在理想条件下的竞争市场”。该概念常用于与垄断、寡头、垄断竞争等市场结构对比分析。

相关词 RelatedWords

文学与经典著作 Literary Works

  • Alfred Marshall, Principles of Economics(《经济学原理》):以竞争市场分析价格与成本、供求均衡。
  • Paul A. Samuelson & William D. Nordhaus, Economics(《经济学》):用“完全竞争”作为市场结构的基础模型。
  • Hal R. Varian, Intermediate Microeconomics(《中级微观经济学》):系统推导完全竞争下的企业供给与福利结论。
  • N. Gregory Mankiw, Principles of Economics(《经济学原理》):以通俗方式介绍完全竞争与“价格接受者”等核心概念。
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