compare_avg_tax_rates

A single <code>data.table</code> containing columns <code>new_tax</code>,
<code>Taxable_Income</code>, <code>baseline_tax</code>.

A <code>data.table</code> of a single cross-section of taxpayers from
which baseline percentiles can be produced.

baseDT

Subset <code>DT</code> by <code>by</code>.

To determine the effects of bracket creep on a proposed tax policy,
a common task is calculate the change in the average tax rates for each percentile.
This function accepts a sample file and a baseline sample file, and returns a 100-row table
giving the mean change in average tax rates for each percentile, compared to the baseline.

Utilities to cost and evaluate Australian tax policy, including fast
projections of personal income tax collections, high-performance tax and
transfer calculators, and an interface to common indices from the Australian
Bureau of Statistics.  Written to support Grattan Institute's Australian
Perspectives program, and related projects. Access to the Australian Taxation
Office's sample files of personal income tax returns is assumed.

Hugh Parsonage

grattan

Australian Tax Policy Analysis

Tim Cameron

compare_avg_tax_rates: Compare average tax rates by percentile

Description

Usage

Arguments