The Distributional Effects of Taxation in Australia and the United Kingdom: Evidence from Microsimulations

The last 60 years have seen Australia and the United Kingdom diverge, both socially and economically. This paper considers how the widening social gap between the two countries is reflected by their respective redistributive systems. The analysis is based upon two microsimulation procedures – one static and the other dynamic – both of which are used to consider the probable distributional effects that would arise if elements of the Australian and UK tax and benefits systems were exchanged. The static microsimulation analysis presented suggests that comparisons based purely upon cross-sectional survey data are affected by population heterogeneity, which tend to overstate the redistributive effect of the Australian transfer system relative to the UK. Nevertheless, the dynamic microsimulations suggest that, on balance, the Australian transfer system is more redistributive than the UK system, and reflects a greater concern for redistribution between households. The UK system, in contrast, reflects a greater concern for redistribution through the life course.