Waldman eviscerates Ezra Klein's summary of Bernstein's paper that itself summarizes the literature on inequality.
"Klein sets up a straw man when he argues:
A world in which inequality is the top concern is a world in which raising taxes on the rich is perhaps the most important policy choice the government can make. A world in which growth and unemployment are top concerns are worlds in which very different policies — from stimulus spending to permitting more inflation — might be the top priorities.
One could make the world more equal just by burning everything down too! But no one advocates this. So obviously inequality doesn’t matter, right?
People concerned with inequality in fact argue not to tear down the rich but to raise up the rest — at the expense of the rich to the degree that is necessary, but not just because. We argue for policies like basic income, wage subsidies, and, yes, more inflation-tolerant macro policy and more fiscal stimulus where those policies help support the poor and middle. A focus on inequality sometimes does create wedges between us and other “progressives”. We might not be so excited, for example, by a fiscal policy that is “expansionary” by virtue of a deficit accounted for in large part by tax expenditures to the rich. We might celebrate less than a Democratic party that treats inflation in the price of real estate and financial assets as unambiguously good news.
A policy apparatus for which inequality is not a “top concern” might content itself with spurring demand by protecting and increasing the wealth of the politically-connected rich, on the theory that anyone’s misfortune hurts at the margin and providing support to the non-rich is politically impossible. But that’s, like, totally science fiction, right?"
That last paragraph sums up more or less what I have been FUCKING saying on these pages for the last two years.
From another of Steve's posts:
"But the reality of MPC effects means that, along with all those other possibilities, broadening the distribution of income would be expansionary and narrowing that distribution would be contractionary, ceteris paribus. If, like Larry Summers, it pains you that maybe the “natural interest rate” is negative now, the reality of MPC effects means that policy which broadens the distribution of income would help push it positive, and put us back into more comfortable territory. If, like me and Pope Francis, you think that present levels of inequality are horrific for human and communitarian reasons, then among the many macro policies that might support demand, it is rational to tilt towards those more likely to engender a broad distribution. It is quite irrational, as I think some well-meaning economists do, to hold MPC effects to much higher standards of evidence than the mechanisms that justify other interventions, because “economics is not a morality play” and reducing inequality would be the moral thing. Better to err on the side of human welfare rather than reputational purity.
I happen to think that the macroeconomic case for reducing inequality is much stronger than the case I’ve made here. I think the character of growth is badly misshapen when demand is narrowly sourced, that technological stagnation is mostly a distributional problem, that institutional correlates of growth are harmed by increasing inequality. But those are all more speculative claims. You can tell me the “jury is still out” on those. But the jury is not out, it never reasonably has been out, on the reality of distribution-related MPC effects. I’ll disagree, respectfully, if you claim that for supply-side or libertarian reasons we should ignore that reality and prefer other means of supporting demand (or that we should not worry about supporting demand at all). But don’t say “it’s unclear” whether income distribution affects aggregate demand, holding other factors constant. Of course it does."
And I would like to send a special STFU to Scott Winship and your fellow econowhores at Marginal Revolution, the National Review etc. Your statistical (and logical) arguments are bullshit.
I am glad that economists who matter (admittedly I don't) are finally making their points more forcefully. Its time to stop apologizing for the obvious.