I never claimed it was a 100% explanation. Italy and Germany had a parliamentary system, and ended up with Mussolini and Hitler - so a parliamentary system is n

I never claimed it was a 100% explanation. Italy and Germany had a parliamentary system, and ended up with Mussolini and Hitler - so a parliamentary system is no foolproof guarantee of avoiding bad outcomes. But the finding that parliamentary systems produce superior outcomes has good empirical support in the literature. See for example https://www.bu.edu/sthacker/files/2012/01/Are-Parliamentary-Systems-Better.pdf https://www.bu.edu/sthacker/files/2012/01/Are-Parliamentary-... https://theconversation.com/parliamentary-systems-do-better-economically-than-presidential-ones-111468 https://theconversation.com/parliamentary-systems-do-better-... I would never claim that 100% of the problems faced by either the US or Latin America are due to a presidential system. My claim is merely that it hasn’t helped them, and that while a parliamentary system is no panacea, it likely would have avoided or lessened some of them