The argument we hear most from the Education Blob against education freedom is that we must first “fully fund” public schools before letting parents with middle and lower incomes have a real choice on where their kids go to school.

But this graph from Corey DeAngelis, the author of the new book “The Parent Revolution,” shows that in recent years, K-12 employees (mostly administrators) have been rising sharply while student populations and class sizes are dropping. Test scores, by the way, are falling or at best staying stagnant.

When you spend more and you get worse results, this is the very definition of falling productivity. We wonder: Is there any other industry in America outside of public education where productivity keeps falling year after year?