-- What is Digital ID, and what efforts are underway towards implementing interoperable Digital ID systems?
-- What can be achieved by Digital ID interoperability, and at what likely cost to consumers and others?
-- What paths to Digital ID interoperability are most likely to succeed?
Assuming market actors continue on their current trajectory, one or a few interoperable Digital ID systems are likely to emerge through open standards processes and technological licensing; this has the potential to spur significant innovation if privacy and security concerns are adequately addressed.
Available for download at: http://papers.ssrn.com/sol3/papers.cfm?abstract_id=1070061