> That's a fair argument but I'm more interested in how much R&D happens under single payer systems. Half of all medical and pharmaceutical research in the wo

> That's a fair argument but I'm more interested in how much R&D happens under single payer systems. Half of all medical and pharmaceutical research in the world is directly funded by the US. That number doesn't include indirect funding which takes place as well - for example, pharmaceutical companies that are based in Europe (such as Astra Zeneca) often receive the funding for their research from the US, and use additional indirect funding methods to essentially subsidize their research that takes place outside the research with the money they make in the US. The US's market share of medical research has dropped a bit in recent years, but not because countries with single-payer systems are picking up the pace - it's because the research industries in China and India have grown incredibly fast in the last five years.