Piketty, Saez, and Stantcheva | Taxing the 1%: Why the top tax rate could be over 80%
Piketty, Saez, and Stantcheva | Taxing the 1%: Why the top tax rate could be over 80%
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At a time when most OECD countries face large deficits and debt burdens, a crucial public policy question is whether governments should tax high earners more. The potential tax revenue at stake is now very large. For example, doubling the average US individual income tax rate on the top 1% income earners from the current 22.5% level to 45% would increase tax revenue by 2.7% of GDP per year,1 as much as letting all of the Bush tax cuts expire. But, of course, this simple calculation is static and such a large increase in taxes may well affect the economic behaviour of the rich and the income they report pre-tax, the broader economy, and ultimately the tax revenue generated. In recent research (Piketty et al 2011), we analyse this issue both conceptually and empirically using international evidence on top incomes and top tax rates since the 1970s.
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Up until the 1970s, policymakers and public opinion probably considered – rightly or wrongly – that at the very top of the income ladder, pay increases reflected mostly greed or other socially wasteful activities rather than productive work effort. This is why they were able to set marginal tax rates as high as 80% in the US and the UK. The Reagan/Thatcher revolution has succeeded in making such top tax rate levels unthinkable since then. But after decades of increasing income concentration that has brought about mediocre growth since the 1970s and a Great Recession triggered by financial sector excesses, a rethinking of the Reagan and Thatcher revolutions is perhaps underway. The United Kingdom has increased its top income tax rate from 40% to 50% in 2010 in part to curb top pay excesses. In the United States, the Occupy Wall Street movement and its famous “We are the 99%” slogan also reflects the view that the top 1% may have gained at the expense of the 99%.
In the end, the future of top tax rates depends on the public’s beliefs of whether top pay fairly reflects productivity or whether top pay, rather unfairly, arises from rent-seeking. With higher income concentration, top earners have more economic resources to influence social beliefs (through think tanks and media) and policies (through lobbying), thereby creating some reverse causality between income inequality, perceptions, and policies. We hope economists can shed light on these beliefs with compelling theoretical and empirical analysis.
Thomas Piketty, Emmanuel Saez, Stefanie Stantcheva © voxEU.org [These extracts are reprinted under voxEU's rules on reproduction -- Tombuktu.]


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