This paper considers the implications for personal income tax and Goods and Services Tax (GST) revenues of population ageing in New Zealand. It considers 'pure' ageing effects; that is, population size is held constant but its age distribution changes over the next 40 years. With age-earnings...

This paper examines the extent to which projected aggregate tax revenue changes, in association with population ageing over the next 50 years, can be expected to finance expected increases in social welfare expenditures. It uses projections from two separate models, dealing with social...

This article examines income tax progression as a mechanism for achieving the intertemporal adjustments of earnings profiles. With a rising income profile, the preference for progression arises from the market (borrowing) rate of interest exceeding the rate at which the government borrows. For a...

This paper examines the extent to which projected aggregate tax revenue changes, in association with population ageing over the next 50 years, can be expected to finance expected increases in social welfare expenditures. It uses projections from two separate models, dealing with social...

Explores tax structures in a two-period, two-good model, allowing for endogenous labour supplies. The model includes the specification of a joint distribution of wage rates facing individuals in the two periods. It also specifies a joint distribution of the various preference parameters used,...

This paper uses a lifetime income simulation model to examine the effects on inequality and progressivity of extending the time period over which income is measured. The income tax schedule typically displays increasing marginal rates, and there is a substantial amount of relative income...