Congressional report finds higher tax rates don't hurt growth, so Republican party has it pulled

"Changes in the top marginal tax rate do not appear correlated with growth."

A new report from the US's Congressional Research Service has been suppressed by Republicans after it concluded that tax rates are uncorrelated with economic growth or saving, investment, and productivity growth – but do affect the extent of income inequality in the nation.

The report concludes:

The top income tax rates have changed considerably since the end of World War II. Throughout the late-1940s and 1950s, the top marginal tax rate was typically above 90%; today it is 35%. Additionally, the top capital gains tax rate was 25% in the 1950s and 1960s, 35% in the 1970s; today it is 15%. The average tax rate faced by the top 0.01% of taxpayers was above 40% until the mid-1980s; today it is below 25%. Tax rates affecting taxpayers at the top of the income distribution are currently at their lowest levels since the end of the second World War.

The results of the analysis suggest that changes over the past 65 years in the top marginal tax rate and the top capital gains tax rate do not appear correlated with economic growth. The reduction in the top tax rates appears to be uncorrelated with saving, investment, and productivity growth. The top tax rates appear to have little or no relation to the size of the economic pie.

However, the top tax rate reductions appear to be associated with the increasing concentration of income at the top of the income distribution. As measured by IRS data, the share of income accruing to the top 0.1% of U.S. families increased from 4.2% in 1945 to 12.3% by 2007 before falling to 9.2% due to the 2007-2009 recession. At the same time, the average tax rate paid by the top 0.1% fell from over 50% in 1945 to about 25% in 2009. Tax policy could have a relation to how the economic pie is sliced—lower top tax rates may be associated with greater income disparities.

The report is particularly important for its treatment of capital gains tax as well as just income tax. The former is significantly lower than the latter, and has been for all but three years of the US's post-WWII history. As a result, it is a significant avenue for tax avoidance.

The argument for keeping capital gains tax low is that it stimulates investment, by encouraging people to invest rather than spend income. If, as the report concludes, it is in fact unconnected with investment rates, then that method of tax-dodging could be closed without harming the economy much, if at all.

The report, which was written by a neutral government body, was not welcomed by the Republican party, which is opposed to much taxation. The New York Times' Jonathan Weisman writes:

Senate Republican aides said they had protested both the tone of the report and its findings. Aides to Mr. McConnell presented a bill of particulars to the research service that included objections to the use of the term “Bush tax cuts” and the report’s reference to “tax cuts for the rich,” which Republicans contended was politically freighted.

They also protested on economic grounds, saying that the author, Thomas L. Hungerford, was looking for a macroeconomic response to tax cuts within the first year of the policy change without sufficiently taking into account the time lag of economic policies. Further, they complained that his analysis had not taken into account other policies affecting growth, such as the Federal Reserve’s decisions on interest rates.

“There were a lot of problems with the report from a real, legitimate economic analysis perspective,” said Antonia Ferrier, a spokeswoman for the Senate Finance Committee’s Republicans. “We relayed them to C.R.S. It was a good discussion. We have a good, constructive relationship with them. Then it was pulled.”

The Republican congressional leadership. Photograph: Getty Images

Alex Hern is a technology reporter for the Guardian. He was formerly staff writer at the New Statesman. You should follow Alex on Twitter.

Photo: Getty
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Theresa May is paying the price for mismanaging Boris Johnson

The Foreign Secretary's bruised ego may end up destroying Theresa May. 

And to think that Theresa May scheduled her big speech for this Friday to make sure that Conservative party conference wouldn’t be dominated by the matter of Brexit. Now, thanks to Boris Johnson, it won’t just be her conference, but Labour’s, which is overshadowed by Brexit in general and Tory in-fighting in particular. (One imagines that the Labour leadership will find a way to cope somehow.)

May is paying the price for mismanaging Johnson during her period of political hegemony after she became leader. After he was betrayed by Michael Gove and lacking any particular faction in the parliamentary party, she brought him back from the brink of political death by making him Foreign Secretary, but also used her strength and his weakness to shrink his empire.

The Foreign Office had its responsibility for negotiating Brexit hived off to the newly-created Department for Exiting the European Union (Dexeu) and for navigating post-Brexit trade deals to the Department of International Trade. Johnson was given control of one of the great offices of state, but with no responsibility at all for the greatest foreign policy challenge since the Second World War.

Adding to his discomfort, the new Foreign Secretary was regularly the subject of jokes from the Prime Minister and cabinet colleagues. May likened him to a dog that had to be put down. Philip Hammond quipped about him during his joke-fuelled 2017 Budget. All of which gave Johnson’s allies the impression that Johnson-hunting was a licensed sport as far as Downing Street was concerned. He was then shut out of the election campaign and has continued to be a marginalised figure even as the disappointing election result forced May to involve the wider cabinet in policymaking.

His sense of exclusion from the discussions around May’s Florence speech only added to his sense of isolation. May forgot that if you aren’t going to kill, don’t wound: now, thanks to her lost majority, she can’t afford to put any of the Brexiteers out in the cold, and Johnson is once again where he wants to be: centre-stage. 

Stephen Bush is special correspondent at the New Statesman. His daily briefing, Morning Call, provides a quick and essential guide to domestic and global politics.