"William Hoyle, founder of techfortrade.org and director of the 3D4D challenge talks about the potential of 3D printing technology to change the way we produce goods and overcome infrastructure difficulties in Africa.":
And implications may be large: http://millenniumjournal.files.wordpress.com/2012/10/rumpala-additive-manufacturing-as-global-remanufacturing-of-politics.pdf
I believe that 3D printing can revolutionise economy.
If each and every small community (for instance small villages) would have access ti 3D printers, most of the production nowadays outsourced to regions with lowest labout costs could return back to where raw materials are produced, i.e. a baco to localisation trend could emerge.
I have no pointers now, but I'm sure there is ample literature available.
There is a vision related to globalisation-localisation tension:
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