> In the 2013 list, approximately 40 percent of Sweden’s billionaires are self-made while 60 percent inherited their wealth. In the United States, by contrast, 70 percent of billionaires are self-made while around 30 percent inherited their wealth. Once we exclude inherited wealth, the United States has around 1 self-made billionaire per million inhabitants compared to 0.6 for Sweden.

https://www.nationalreview.com/the-agenda/guest-post-tino-sa...

Sweden has higher funding per capita, but does not answer why it became this way.

https://www.statista.com/statistics/1071105/value-of-investm...

Almost all of them are old people outside of tech

https://en.wikipedia.org/wiki/List_of_Swedish_billionaires_b...

Sweden is unusual in that way. You often hear about that it's one of the countries with the most equal income distribution but at the same time it has one of the highest wealth inequalities. Basically it's hard to make any money by working you have to own things.