It seems to me, from reading the charts, that it still follows power law distribution, just with different cities. In other words, the labor dynamic that creates super star cities are still very much in place, just with new cities. Is that a fair reading?

Also, tangentially, what statistics should I calculate if I want to measure how "concentrated" the distribution is? The first thing that comes to mind is Gini coef, does that apply here or is there something else? The question I'm trying to answer is if the jobs are more dispersed among different cities or concentrated - assuming the cities themselves don't matter.