Sometimes here at KPC someone sends a link that is just SO sweet that we have to examine it, savor it, and then leave it by the side of the road to rot.
While Sweden has a large state and well developed public services, in Japan government social expenditure makes up an unusually small part (compared to other OECD countries) of its Gross National Income. The same contrast exists among US states - even between neighbouring states like Vermont and New Hampshire. Vermont takes the big government route and New Hampshire the small. But despite the contrast in how greater equality is achieved, Sweden, Japan, Vermont and New Hampshire all enjoy good health, lower rates of most social problems - i.e. all the benefits of greater equality.
Here is just such a link, a set of "studies" so noisome, so nonsensical... well, enjoy. Here is the "evidence" page. This is a rare combination of almost painful self-importance and bad social science.