What shapes the optimal degree of progressivity of the tax and transfer system? On the one hand, a progressive tax … earnings risk. At the same time, progressivity reduces incentives to work and to invest in skills, and aggravates the …, and market structure parameters influence the optimal degree of progressivity. A calibration for the U.S. economy …

progressivity in flat-tax reforms of the United States economy. We find that investment expensing as in the Hall and Rabushka type … expensing and varying degrees of progressivity reveal that the distributional role of the tax-exemption in the labor income tax … is limited. But we also find that the progressivity of the reforms matters for welfare: economies with more progressive …