...although GDP ain't all it's cracked up to be!
Excerpt from article @ New Scientist, 14 August 2009
'A better way of estimating GDP is badly needed, especially for poorer nations. Data collected by national governments is weak when it comes to informal sectors of the economy, such as street markets. In some countries, such as Liberia, economic information systems are so poor that meaningful data is sometimes non-existent.
Satellite images could help plug the gap. Nations tend to build new roads and expand residential areas as they become more wealthy, both of which increase the number of lights that can be seen from space.'
Image from NOAA/SPL
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