And see Russ Roberts' hint at why such things fail: http://www.econlib.org/library/Columns/y2005/Robertsmarkets.html http://www.econlib.org/library/Columns/y20

And see Russ Roberts' hint at why such things fail: http://www.econlib.org/library/Columns/y2005/Robertsmarkets.html http://www.econlib.org/library/Columns/y2005/Robertsmarkets....