"a new study [0] from the Political Economy Research Institute (PERI) at the University of Massachusetts-Amherst finds that single-payer health care will save the US $5.1 trillion over a decade while drastically cutting working-class Americans’ health spending." [1]

"Blahous’s paper[2], titled “The Costs of a National Single-Payer Healthcare System,” estimates total national health expenditures. Even though his cost-saving estimates are more conservative than others, he acknowledges that Sanders’s “Medicare for All” plan would yield a $482 billion reduction in health care spending, and over $1.5 trillion in administrative savings, for a total of $2 trillion less in overall health care expenditures between 2022 and 2031, compared to current spending." [3]

[0] https://www.peri.umass.edu/publication/item/1127-economic-an...

[1] https://www.jacobinmag.com/2018/12/medicare-for-all-study-pe...

[2] https://www.mercatus.org/system/files/blahous-costs-medicare...

[3] https://theintercept.com/2018/07/30/medicare-for-all-cost-he...