http://papers.ssrn.com/sol3/papers.cfm?abstract_id=2648778 http://papers.ssrn.com/sol3/papers.cfm?abstract_id=2750068 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.okfn.org/pipermail/okfn-np/attachments/20160408/96154362/attachment-0003.html>