> Does the data show that countries with single payer, or even individual-based (not employer) health care, have greater percentages of entrepreneurs? How about overall entrepreneurial outcomes?It's worth noting that the quote from the article and this question are not at all the same thing. National economies are big complicated things.
Aside from the USA, few countries without+ universal healthcare have high rates of what we in the US would consider entrepreneurial activity (e.g., excluding "self-employed" subsistence farmers and the like). But the USA is one of if not the most entrepreneurial country. Again, those two facts tell us basically nothing about the effect of health care systems on entrepreneurship. Trust me, South Sudan's lack of functional universal healthcare is not the reason they haven't usurped SV...
People try to study the actual effect by controlling for other variables. Unsurprisingly, "it's complicated" and also EXTREMELY politicized, so you can find studies on both sides of the issue.
+ But does the US "not have" universal healthcare? cf Canada/western Europe and the answer is yes, but cf other countries and medicare/medicaide and the answer is more fuzzy.