PUBLICATION: How many planet-wide leaders should there be?
© ACM, 2015. This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in DCC 2015, 3rd Workshop on Distributed Cloud Computing, co-located with ACM SIGMETRICS 2015, June 15th, Portland, USA http://dx.doi.org/10.1145/2847220.2847222
