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Everyone knows that the flow of information is complex and tangled in society today -- so thank goodness for copyright law! Truly, no part of our national policy is as coherent, in the interest of the public or as updated for the Internet age as that gleaming tome in the US Code.
But one MIT economist, who recently presented his work recently at Wikimania, has found a way to test how the copyright law affects one online community -- Wikipedia -- and how digitized, public domain works dramatically affect the quality of knowledge.