Marginal Tax Rates and the Tax Reform of 1986: the Long-run Effect on the U.S. Wealth Distribution

I investigate the effects of the Tax Reform Act of 1986 on the U.S. wealth distribution in a model in which heterogeneous agents face idiosyncratic labor income risk and hold only one asset. The model's stochastic process for earnings is consistent with estimates from panel data. I calibrate the model to match the U.S. wealth distribution and the progressive U.S. income tax structure in 1984. Then, using the same earnings process, I compute the equilibrium with the post-reform income tax structure of 1989. The reform increases the after-tax return to savings more for wealthy households than for wealth-poor households. As a result, I find that the tax reform can account for all of the increase in wealth inequality observed in the data.