The report, which highlights the growing gulf between haves and have-nots, was compiled by five economists, including scholars Emmanuel Saez and Thomas Piketty. Global Economic Inequality is surging, further widening the pay gap between the haves and have-nots, according to a new World Inequality report. The report highlights the growing gulf between the haves and the have-nots, and was compiled by five economists, including scholars Emmanuel Saez and Thomas Piketty. The top .001 percent of earners in the United States, consisting of almost 1,300 households, have seen their earnings skyrocket by 636 percent in the past 12 months. Meanwhile, the average annual income for the bottom 50 percent of earners has stayed constant at US$16,000 over the last four decades, adjusting for inflation.