- Defining poverty as less than $1/day, world poverty rates fell by 80% from 27% in 1970 to slightly more than 5% in 2006.
- The corresponding total number of poor fell from 403 million in 1970 to 152 million in 2006.
- Similar findings apply if other poverty measures are used ($2/day, 5$/day, etc)
- These estimates are much lower than what is suggested in other research.
The paper is an obvious must-read. I haven't yet had more than a quick look at the methodology, but it all looks decent enough for this sort of thing and even impressive at parts, and of course Sala-i-Martin's name is a gold seal of quality.
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