Economists who specialize in these matters, including Thomas Piketty, Emmanuel Saez, and Peter Diamond, typically argue that a marginal rate around 70 percent maximizes revenue.

FORBES: Certain Lefty Economists Do So Annoy Me

The economists Emmanuel Saez and Thomas Piketty have found that ninety-three per cent of the gains during the 2009-10 recovery went to the top one per cent of earners.

NEWYORKER: Super-Rich Irony

In a new NBER working paper, Thomas Piketty of the Paris School of Economics and Emmanuel Saez of the University of California at Berkeley poke different holes in the conventional view.

ECONOMIST: Free exchange: Zero-sum debate | The

The best information on the highest incomes comes from tax returns, thanks to work pioneered by two French economists, Emmanuel Saez and Thomas Piketty, together with a Briton, Anthony Atkinson, and an Argentine, Facundo Alvaredo.

ECONOMIST: Sizing the gap

Thomas Piketty of the Paris School of Economics, Emmanuel Saez of the University of California, Berkeley, and Stefanie Stantcheva of MIT argue in a new paper that this is why few studies have been able to show any significant long-term effect from raising top tax rates.

ECONOMIST: How to raise the highest rates without doing too much damage