新贸易理论关于规模经济的基本观点及其评析

Scale Economy in Neo Trade Theory:Its Basic Viewpoint and Analysis

７０年代末以来，规模经济的理论研究及实证分析工作取得了重大进展，国内学术界对此也做了较为详尽的介绍。但以往数理模型往往显得抽象、复杂，对规模经济的考察难以在一个相对简易的理论框架内进行。本文简要介绍垄断竞争情况下，新贸易学派关于规模经济的一种简化模型。在简化模型基础上，对规模经济与比较优势。

Abstract Since the end of the seventies great progress has been achieved in the theoretical research and substantial analysis of scale economy:scholars across the country have made detailed and complete introduction to it.However,the mathematical matrix appears Abstract and complicated and it is difficulty to examine the scale economy in a comparatively simple theoretical frame.This paper briefly introduces a simplified matrix of scale economy proposed by the Neo Trade School under the condition of monopolist competition.On the basis of this simplified matrix,the author systematically analyzes and evaluates the relationship between scale economy and comparative superiority and that between trade model and trade benefit.