[mamon]

Inherent property of single-payer system is that medicine professionals salaries are low compared to US, so there's strong incentive for said specialists to emigrate (or for wannabe doctors to pursue other career paths in the first place). Countries with such systems suffer constant shortage of doctors and nurses, further limiting the supply of healthcare services. Truth is, almost all progress in medicine happens in the US, which effectively subsidises healthcare for the rest of the world this way.