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Hey - 
See also:
 	Jones, J.H. and M.S. Handcock. (2003) Sexual contacts and epidemic thresholds. Nature. 423: 605-606.

I believe they have a package to estimate/fit/test distributional forms as well.
PTs
Jim

-----Original Message-----
From: Social Networks Discussion Forum [mailto:[log in to unmask]] On Behalf Of Jen Badham
Sent: Sunday, March 15, 2015 12:17 AM
To: [log in to unmask]
Subject: Re: Testing power law vs exponential tail

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There is an excellent paper specifically on this question: Clauset, A.; Shalizi, C. R. & Newman, M. E. J. Power-law distributions in empirical data SIAM Review, 2009, 51, 661- 703. The toolkits they and others developed are available in several statistical languages from Clauset’s website at http://tuvalu.santafe.edu/~aaronc/powerlaws/

Jennifer Badham
Centre for Research in Social Simulation University of Surrey

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