With the election out of the way it's time to look at research again. This was a highlight of recent publications, coming from Alex Cobham at Tax Justice Network, with permission:
How do tax cuts targeted at different parts of the income distribution affect job creation? This is the question addressed in a new NBER paper by Owen Zidar, an economist at Chicago (not known historically for progressive analysis). But the paper (see the ungated version; and slides) has had a good deal of US media coverage, largely because of the progressive tax implications. First, some graphs:
The main result is not, intuitively, surprising: but it is not a question that has been commonly posed, nor this well answered before. The result is that tax cuts are least likely to generate benefits when targeted to the top 10% of households; and most likely to generate benefits when targeted to the bottom 90% - or as in figure 5, the bottom 50%. As Zidar puts it:
"Overall, tax cuts for the bottom 90% tend to result in more output, employment, consumption and investment growth than equivalently sized cuts for the top 10% over a business cycle frequency."
the top 10% drive the economy;Why would we ever cut taxes for the top 10% as a stimulus, I hear you ask? Because they’re in charge, say the cynics. Or perhaps because policymakers and/or the public have bought a series of economic myths, such as:
- the top 10% spend all their time worrying about things like tax cuts rather than broader factors like aggregate demand, or the availability of sound infrastructure and a healthy, well-educated workforce;
- progressive taxation is bad for growth, and ultimately bad for the poor as well as the rich.
One fairly clear implication of the findings is: the opposite seems to be the case.
A tax change for the top 10% seems to have pretty much no impact on job creation, so a revenue-neutral change in tax structure that deliberately reduces the Palma measure of inequality (that is, the ratio of incomes of the top 10% to the bottom 40%) will not only be progressive but will have the effect of boosting jobs growth. Zidar's next chart shows this: