Technical Change, Wage Inequality, and Taxes
研究技术变革对税收政策设计的规范含义，发现最优政策是降低中低收入者的边际所得税，提高中高收入者的税率，并减少对底层人群的转移支付。
This paper considers the normative implications of technical change for tax policy design. A task-to-talent assignment model of the labor market is embedded into an optimal tax problem. Technical change modifies equilibrium wage growth across talents and the substitutability of talents across tasks. The overall optimal policy response is to reduce marginal income taxes on low to middle incomes, while raising those on middle to high incomes. The reform favors those in the middle of the income distribution, reducing their average taxes while lowering transfers to those at the bottom.