中文摘要：

本文采用CPI和低收入者CPI两种价格指数，运用贫困指数计算方法，以我国2007年以来价格变化为例，分析了这次主要源自粮食和食品价格上涨的通货膨胀对城市贫困人口广度和深度的影响。结果发现，无论在哪种贫困线下，按低收入者CPI统计指标计算的实际影响要比按一般CPI消涨方法得到的结果高出一倍以上。贫困指数对贫困线越敏感，食品价格上涨对贫困的影响就越大。这一现象为政府统计指标的选取、贫困监测和反贫困政策的调整提供了直接依据。

英文摘要：

Based on two kinds of price indices, this paper investigates the impacts of 2007＇s inflation on poverty population and poverty gap adopting poverty calculating method. The results show that the real effects of the inflation evaluated by low-income population＇s CPI are twice of the effects that are evaluated by traditional methods, whichever poverty line is adopted. The more sensitive of poverty index is to poverty line, the greater the impacts of the rising of grain and food price are. This phenomenon provides some advises for government to construct statistical index, monitor poverty and adjust anti-poverty policies.