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On the contribution of demographic change to aggregate poverty measures for the developing world, Volume 1
Author:Ravallion, Martin; Country:World;
Date Stored:2005/05/06Document Date:2005/04/01
Document Type:Policy Research Working PaperSubTopics:Rural Poverty Reduction; Health Monitoring & Evaluation; Health Indicators; Services & Transfers to Poor; Safety Nets and Transfers
Language:EnglishRegion:The World Region
Report Number:WPS3580Collection Title:Policy, Research working paper ; no. WPS 3580
Volume No:1  

Summary: Recent literature and new data help determine plausible bounds to some key demographic differences between the poor and non-poor in the developing world. The author estimates that selective mortality-whereby poorer people tend to have higher death rates-accounts for 10-30 percent of the developing world's trend rate of "$1 a day" poverty reduction in the 1990s. However, in a neighborhood of plausible estimates, differential fertility-whereby poorer people tend also to have higher birth rates-has had a more than offsetting poverty-increasing effect. The net impact of differential natural population growth represents 10-50 percent of the trend rate of poverty reduction.

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