It's funny that the list includes both California and the US.<p>It would be interesting to compare economies of the same scale, regardless of legal status: If you are considering the US and China, maybe you should include the whole of the EU. And if you are looking at Germany, Japan, ... It makes sense to not only include California, but also to split up other countries. I'm curious how high up Guandong or Shanghai would be for example.<p>The fact that the US and China show up as single countries (and not "continents"/regions) whereas the EU shows up as a bunch of "small" countries is source of a lot of inferiority complex in Europe.