食品价格上涨对我国城镇各阶层居民社会福利的影响 阅读全文
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Title | The Impact of Food Price Inflation on Social Welfare in Urban China
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作者 | 杨天宇 张品一 |
Author | Yang Tianyu and Zhang Pinyi |
作者单位 | 中国人民大学经济学院 |
Organization | School of Economics ,Renmin University of China |
作者Email | ytianyu@sina.com;shape2@sina.com |
中文关键词 | 食品价格 社会福利 城镇居民 阶层 |
Key Words | Food Price; Social Welfare; Urban Household; Ranks |
内容提要 | 本文基于CHNS数据库2004和2009年的数据,利用QUAIDS模型估计了食品价格上涨对我国各地区、不同阶层城镇居民社会福利的影响。与国内外文献相比,本文的估计方法既可以处理食品间的替代效应,又不需要假定消费者的预算份额方程是线性的,因此更加准确。本文发现:(1)食品价格上涨对城镇居民的社会福利造成了严重的负向冲击。(2)低收入者不但受食品价格冲击导致的社会福利损失更大,而且也更难以通过替代效应来进行缓冲。(3)不同省份的家庭受到的冲击有较大差别。经济较发达的省区和农业大省的城镇居民,受食品价格上涨的冲击较小。这些结论说明,食品价格上涨对不同群体社会福利的影响具有异质性,如果政府和国内外救助机构能够根据上述情况有针对性地制定补贴或救助计划,将会更有效地减少某些地区城镇低收入家庭所受到的负向冲击,增进城镇居民整体的社会福利。 |
Abstract | This paper analyses the effect of food price shock on urban household of different provinces and ranks in China. A quadratic almost ideal demand system (QUAIDS) model is estimated using CHNS data of 2004 and 2009. Statistical tests suggest the QUAIDS is preferred over the conventionally used models. The results show that the food price inflation has a negative impact on urban residents. Meanwhile, the low-income households, who have limited access to other kinds of foods for substitution, are influenced more adversely than high-income ranks. What’s more, there is great difference of welfare loss between provinces. The households in relatively developed and big agricultural provinces are less affected by food price change. These findings can provide important information to policy makers and can help aid organizations design and implement better social assistance schemes in the future. |
文章编号 | WP466 |
登载时间 | 2013-06-07 |
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