In 1965 and 1966, the United States and Canada adopted single-payer models of government insurance for physician and hospital services – universal in Canada, but restricted to certain population groups in the US. At the time, the American and Canadian political economies of health care and landscapes of public opinion were remarkably similar, and the different policy designs must be understood as products of the distinctive macro-level politics of the day. Subsequently, however, the different scopes of single-payer coverage would drive the two systems in different directions. In Canada, the single-payer system became entrenched in popular support and in the nexus of interest it created between the medical profession and the state. In the US, Medicare became similarly entrenched in popular support, but did so as part of the larger multi-payer private insurance system. In the process universal single-payer coverage became politically iconic in Canada and taboo in the US.
