The Laffer Curve, Again
President Obama and others are demanding higher taxes on the “rich,” and two recent academic papers that have gotten a lot of attention claim to show there will be no ill effects if we do.
The first paper, by Peter Diamond of MIT and Emmanuel Saez of the University of California, Berkeley, appeared in the Journal of Economic Perspectives last August. The second , by Mr. Saez, along with Thomas Piketty of the Paris School of Economics and Stefanie Stantcheva of MIT, was published by the National Bureau of Economic Research three months later. Both suggested that federal tax revenues would not decline even if the rate on the top 1% of earners were raised to 73%-83%.
The authors arrive at their conclusion [by ignoring] …the empirical literature on the … elasticity (responsiveness) of taxable income to changes in marginal tax rates. … A midpoint between the estimates would be an elasticity for gross income of 1.3 for the top 1%. This implies that the revenue-maximizing top marginal rate would be 33.9% for all taxes, and below 27% for the federal income tax.
More from Alan Reynolds in today’s Wall Street Journal.






