购买力平价理论在一国区域间应用的模型修正

The Model Modification of Balassa-samuelson Model on Purchasing Power Parity between Areas in One Country

购买力平价理论(PPP)是不同国家之间汇率决定的一种理论,"巴萨模型"在此基础之上系统论述了真实汇率与购买力平价之间产生系统性偏差的原因。本文借鉴巴拉萨—萨缪尔森关于购买力平价的理论,在"巴萨模型"的基础之上结合实际提出并推导了一国区域间购买力平价的修正模型,最后通过修正后的模型分析了导致一国内区域间货币实际购买力差异的原因。

Purchasing Power Parity is a theory of exchange rate between different countries,＂Balassa-Samuelson Model ＂ discussed the reason systematically why it has systematic deviation between real exchange rate and Purchasing Power Parity.This paper puts up with and deduces a correction model on Purchasing Power Parity between areas in one country on the base of Balassa-Samuelson Model,then demonstrates the reason why it emerges the difference on purchasing power of the same currency between areas in one country with revised model.