Table A7
Comparison of Piketty and Saez’s results with Sommeiller and Price’s U.S. results
| From Table 1. Ratio of top 1% income to bottom 99% income, U.S. and by state and region, 2013 | |||||
| Source | Average income of the bottom 99% | Average income of the top 1% | Top-to-bottom ratio | ||
|---|---|---|---|---|---|
| Sommeiller and Price | $45,567 | $1,153,293 | 25.3 | ||
| Piketty and Saez | $44,997 | $1,119,315 | 24.9 | ||
| From Table 4. Income threshold of top 1% and top .01%, and average income of top .01%, U.S. and by state and region, 2013 | |||||
| Source | Income threshold of top 1% | Income threshold of top .01% | Average income of top .01% | ||
| Sommeiller and Price | $389,436 | $8,325,378 | $26,106,656 | ||
| Piketty and Saez | $391,960 | $8,460,500 | $24,988,251 | ||
| From Table 7. Income growth from 2009 to 2013, overall and for the top 1% and bottom 99%, U.S. and by state and region | |||||
| Average real income growth | Share of total growth (or loss) captured by top 1% | ||||
| Source | Overall | Top 1% | Bottom 99% | ||
| Sommeiller and Price | 3.7% | 17.4% | 0.7% | 85.1% | |
| Piketty and Saez | 3.5% | 14.7% | 1.0% | 76.3% | |
| From Table 8. Income growth from 1979 to 2007, overall and for the top 1% and bottom 99%, U.S. and by state and region | |||||
| Average real income growth | Share of total growth (or loss) captured by top 1% | ||||
| Source | Overall | Top 1% | Bottom 99% | ||
| Sommeiller and Price | 36.9% | 200.5% | 18.9% | ||
| Piketty and Saez | 37.3% | 224.0% | 16.6% | ||
| From Table 10. Top 1% share of all income, U.S. and by state and region, 1928, 1979, 2007 | |||||
| Change in income share of the top 1% (percentage points) | |||||
| Source | 1928 | 1979 | 2007 | 1928–1979 | 1979–2007 |
| Sommeiller and Price | 23.4 | 9.9 | 21.8 | -13.4 | 11.8 |
| Piketty and Saez | 23.9 | 10.0 | 23.5 | -14.0 | 13.5 |
Note: The income shares reported in Table 10 are indexed to Piketty and Saez (2015) as requested for submission of our state level estimates to the World Wealth and Income Database. The income shares reported above are the top income shares in from our analysis before indexing to the national estimates.
Source: Authors’ analysis of state-level tax data from Sommeiller (2006) extended to 2011 using state-level data from the Internal Revenue Service SOI Tax Stats (various years), and Piketty and Saez (2012)
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