I'm curious what you mean by "homogeneous". I've just had a quick Google and apparently the Gini coefficient in Japan is ~0.3 compared to ~0.48 in the US, which

I'm curious what you mean by "homogeneous". I've just had a quick Google and apparently the Gini coefficient in Japan is ~0.3 compared to ~0.48 in the US, which is one definition of "homogeneous". Another search turned up some suggestion that said coefficient correlates well with the percentage of people who have been victims of theft/assault or who feel unsafe walking home alone.