the thing to remember about capitalist lickspittle propaganda like this is the U.S. is *already 11 years into its worst growth period since the 1930s*
the financial crisis and ensuing austerity kinked down growth by ~40%. we're ~$1.7-$4.6 trillion below the pre-2008 output trend rooseveltinstitute.org/wp-content/upl… 
and yet we've still got neoliberal hacks telling us with a straight face that wealth taxes will be a drag on growth. utter frauds
and what's the proposed mechanism? why reduced incentive to save and invest, of course
we had a direct test of this basic theory with the Trump tax cuts, which per neoliberal dogma, should raise growth by increasing the incentive to invest. but a CRS study found barely any such effect everycrsreport.com/reports/R45736…
now, as Marshall points out the Penn crew predicted increasing the deficit would crowd out any growth boost by increasing interest rates
but there was no sign of that in the broader lending market, and even the Fed rate hikes have been reversed this year macrotrends.net/charts/interes…
