Larry M. Bartels

“On average, the real incomes of middle-class families have grown twice as fast under Democrats as they have under Republicans, while the real incomes of working poor families have grown six times as fast under Democrats as they have under Republicans. These substantial partisan differences persist even after allowing for differences in economic circumstances and historical trends beyond the control of individual presidents. They suggest that escalating inequality is not simply an inevitable economic trend—and that a great deal of economic inequality in the contemporary United States is specifically attributable to the policies and priorities of Republican presidents.”
― Larry M. Bartels, Unequal Democracy: The Political Economy of the New Gilded Age

“Many ordinary Americans believe that “large differences in income are necessary for America’s prosperity,” as one standard survey question puts it.18 However, economists who have studied the relationship between inequality and economic growth have found little evidence that large disparities in income and wealth promote growth.19 There is not even much hard evidence in support of the commonsense notion that progressive tax rates retard growth by discouraging economic effort. Indeed, one liberal economist, Robert Frank, has written that “the lessons of experience are downright brutal” to the notion that higher taxes would stifle economic growth by causing wealthy people to work less or take fewer risks.”
― Larry M. Bartels, Unequal Democracy: The Political Economy of the New Gilded Age