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Working Paper
Taxing top earners: a human capital perspective
We assess the consequences of substantially increasing the marginal tax rate on U.S. top earners using a human capital model. The top of the model Laffer curve occurs at a 53 percent top tax rate. Tax revenues and the tax rate at the top of the Laffer curve are smaller compared to an otherwise similar model that ignores the possibility of skill change in response to a tax reform. We also show that if one applies the methods used by Diamond and Saez (2011) to provide quantitative guidance for setting the tax rate on top earners to model data then the resulting tax rate exceeds the tax rate at ...
Working Paper
Time Averaging Meets Labor Supplies of Heckman, Lochner, and Taber
We incorporate time-averaging into the canonical model of Heckman, Lochner, and Taber (1998) (HLT) to study retirement decisions, government policies, and their interaction with the aggregate labor supply elasticity. The HLT model forced all agents to retire at age 65, while our model allows them to choose career lengths. A benchmark social security system puts all of our workers at corner solutions of their career-length choice problems and lets our model reproduce HLT model outcomes. But alternative tax and social security arrangements dislodge some agents from those corners, bringing ...
Working Paper
The Sufficient Statistic Approach: Predicting the Top of the Laffer Curve
We provide a formula for the tax rate at the top of the Laffer curve as a function of three elasticities. Our formula applies to static models and to steady states of dynamic models. One of the elasticities that enters our formula has been estimated in the elasticity of taxable income literature. We apply standard empirical methods from this literature to data produced by reforming the tax system in a model economy. We find that these standard methods underestimate the relevant elasticity in models with endogenous human capital accumulation.
Working Paper
Optimal Dynamic Tax-Transfer Policies in Heterogeneous-Agents Economies
In the design of an optimal tax-transfer system, there are two complementary conventional wisdoms: the labor-efficiency argument and the debt-efficiency argument. The former emphasizes the trade-off between redistribution and distortions in the labor market, while the latter emphasizes the trade-off between gains from monopoly rents and distortions in the asset market. We use an analytically tractable infinite-horizon model with both ex-ante and ex-post heterogeneity to show that neither argument is complete in the design of the tax-transfer system. Instead, in Aiyagari-type models the ...