***** To join INSNA, visit http://www.insna.org ***** <<<-------- John McCreery-------->>> > By definition 2-mode networks constructed from affiliation matrices ... > production. What I am looking for, then, is a way to calculate changes in > the expected value of network densities, given these changes. In most real life networks the density is decreasing when increasing the size (number of vertices) - often it becomes very small (because of limited capability of actors to link - for example Dunbar number). From my experience a much better quantity (which is also much closer to our intuition) is the average degree - in your case the average degrees in the first and the second set. Try to plot them in the plane for all your networks. Vlado -- Vladimir Batagelj, University of Ljubljana, FMF, Department of Mathematics Jadranska 19, 1000 Ljubljana, Slovenia http://vlado.fmf.uni-lj.si _____________________________________________________________________ SOCNET is a service of INSNA, the professional association for social network researchers (http://www.insna.org). To unsubscribe, send an email message to [log in to unmask] containing the line UNSUBSCRIBE SOCNET in the body of the message.