How accurate is a poverty map based on remote sensing data? An application to Malawi

• 成果类型: Article
• 署名作者: van der Weide, Roy; Blankespoor, Brian; Elbers, Chris; Lanjouw, Peter
• 署名单位: The World Bank; Vrije Universiteit Amsterdam
• 刊物名称: JOURNAL OF DEVELOPMENT ECONOMICS
• ISSN/ISSBN: 0304-3878
• DOI: 10.1016/j.jdeveco.2024.103352
• 发表日期: 2024
• 关键词: poverty; Small area estimation; Remote sensing data

摘要

This paper assesses the reliability of poverty maps derived from off-the-shelf remote-sensing data. Employing data for Malawi, it first obtains small area estimates of poverty by combining household expenditure survey data with population census data. It then ignores the population census and obtains a second poverty map by combining the survey with predictors of poverty derived from remote sensing data. The two approaches reveal the same patterns in the geography of poverty. However, there are instances where the two approaches obtain markedly different estimates of poverty. Poverty maps obtained using remote sensing data may do well when the decision maker is interested in comparisons of poverty between assemblies of areas yet may be less reliable when the focus is on estimates for specific small areas.