Treasury currently has a project underway to significantly enhance its capability to produce detailed modelling of retirement incomes in Australia. The Model of Australian Retirement Incomes and Assets (MARIA) is a long-term dynamic microsimulation model of Australia's retirement income system....

Distributional analysis captures the wide range of policy outcomes and the diverse effects of policy changes across the population. Static microsimulation models are a commonly used tool for producing distributional analysis. Treasury has developed the CAPITA (Comparative Analysis of Personal...

We evaluate the 2017 Tax Cuts and Jobs Act. Combining reduced-form estimates from tax data with a global investment model, we estimate responses, identify parameters, and conduct counterfactuals. Domestic investment of firms with the mean tax change increases 20% versus a no-change baseline. Due...

This paper uses administrative tax data to estimate top wealth in the United States. We assemble new data that links people to their sources of capital income and develop new methods to estimate the degree of return heterogeneity within asset classes. Disaggregated fixed income data reveal that...

This paper studies the coevolution of the fall in the US corporate sector labor share and the rise of business activity in tax-preferred, pass-through form. Reallocating activity to the form it would have taken prior to the Tax Reform Act of 1986 accounts for one third of the decline in the...