MMT often boils down to nothing more than an especially naïve sort of Keynesianism: assume an unlimited excess supply of every resource save money balances, and, voila! monetary expansion can costlessly finance all the projects we like!
Here’s Scott Sumner on Alex Tabarrok on liberalizing the market for kidneys. (On the general topic of goods and services that are legal to donate but illegal to sell, my excessive vanity compels me to link again to this 1995 Cato Journal article of mine.)
There can be no disputing the fact that real wages haven’t been stagnating at all, notwithstanding the assertions of the two senators who want to help workers. From the start of 2000 through the end of 2017, real average hourly earnings rose 17.3% (Fig. 8). I am using the series that applies only to production and nonsupervisory workers, who tend to be rich only if they win the lottery. They account for roughly 80% of all workers.