Found in 2 comments on Hacker News
grandalf · 2010-08-19 · Original thread
A superb book on the economic history of intellectual property legislation around the world:

http://www.amazon.com/Lever-Riches-Technological-Creativity-...

grandalf · 2009-06-17 · Original thread
If you like this subject check out the book "The Lever of Riches" which is an in-depth study of the issue:

http://www.amazon.com/Lever-Riches-Technological-Creativity-...

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