V2EX price dispersion

Price Dispersion

释义 Definition

价格离散(价格分散):在同一时间或相近时间里,相同或高度相似的商品/服务在不同卖家、渠道或地区出现不同成交价格的现象。常见于信息不完全、搜寻成本、品牌差异、促销策略、地域与税费差异等情境。(在经济学与市场营销中很常用;相关概念还包括“价格歧视”等,但不完全相同。)

发音 Pronunciation

/prs dspn/

例句 Examples

Online shopping can reduce price dispersion by making it easier to compare sellers.
网购可以通过让比价更容易来降低价格离散。

Even in competitive markets, search costs and brand loyalty can sustain price dispersion for identical products across platforms.
即使在竞争激烈的市场中,搜寻成本与品牌忠诚也可能让同一产品在不同平台上长期保持价格离散。

词源 Etymology

price 源自古法语 pris(价格、价值),与“评估/估价”的意义相关;dispersion 来自拉丁语 dispergere(撒开、散布),经由法语与英语演变为“分散、离散”。组合起来字面义就是“价格的分散”,在现代经济学语境中专指同质商品价格在市场中的分布差异。

文学与经典著作 Notable Works

  • George J. Stigler, The Economics of Information(论文,1961)讨论信息与搜寻如何导致市场中的价格差异/分散。
  • Jean Tirole, The Theory of Industrial Organization(1988)在产业组织框架下讨论价格、信息与市场结构(相关章节常涉及价格分散现象)。
  • Hal R. Varian, Intermediate Microeconomics: A Modern Approach(多版本)在消费者搜寻、信息与市场章节中常用“价格分散”作为例题或讨论点。
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