The network we are all a part of is now considering the issue. However, measures to reduce assimilation go beyond traditional economic and demographic factors. There are aspects tied to the vitality of communities. Sometimes, measures turn out to be useless, and sometimes, they work better in some places than in others. In some places, avoiding major problems is enough. I think we have to look at somewhat more flexible sociological factors in order to come up with a fair formula.
On May 1st, 2008. See this statement in context.