I compare pre-tax and post-tax wealth levels and trends after netting out implicit taxes on tax-deferred assets and accrued capital gains. The analysis covers 1983–2016 for net worth (NW) and augmented wealth (AW), which includes pension and Social Security wealth. Netting out implicit taxes substantially reduces growth in mean and median NW and AW. However, the upward trajectory in NW and AW inequality is basically unchanged from using post-tax values. I also introduce bequest wealth, the value of the estate including death benefits. It is notably more equal than NW and has grown faster over time.

Self-employment taxes, “effective” marginal tax rates, and discounting schemes which allow for alternative purchase and disposal dates of machinery are incorporated into the traditional optimal replacement interval model. Empirical results indicate that these alterations decrease the optimal replacement intervals by up to three years from those obtained with traditional modeling assumptions. Inclusion of self-employment taxes decreases both the penalty attached to early replacement and the net present value (cost) of tractor ownership.