中文摘要：

地区购买力平价（即地区PPP或地区间价格差异指数）作为2011年最新一轮国际比较项目（ICP）的一个重要议题,在宏观经济决策中发挥着越来越重要的作用。文章从实施方案、方法特点、适用性和优缺点等角度,对国际上较为常见的篮子成本法（包括价格法和单位值法）、Hedonic回归分析法和拓展的恩格尔曲线法等地区PPP编制方法进行了详细分析和评价。

英文摘要：

Sub-national purchasing power parity （PPP） （or inter regional price variance index） as an important topic for dis- cussion in the newest-round International Comparison Program （ICP） in 2011, is playing an increasingly important role in the macroeconomic decision-making. The paper makes a detailed analysis and evaluation on the methods of calculating sub-national PPP such as the common basket cost method （including price method and unit value method）, hedonic regression analysis method, and extended Engel＇ s curve approach from the perspectives of implementation plans, features, applicability, advantages and dis- advantages, and so forth.