The impact of changes in private health expenditure on New Zealand households.

The proportion of New Zealand's total health expenditure financed by the public sector has fallen from 87% in 1983/84 to 77% in 1997/98 in real per capita terms. In the paper, we firstly describe changes in private health expenditure in New Zealand and compare these changes with trends in private and public health expenditure in a number of OECD countries. Secondly, we find that in New Zealand, there have been increases in both out-of-pocket payments and membership of private health insurance funds over the period from 1983/84 to 1997/98. We analyze the relationship between out-of-pocket expenditure, insurance expenditure, and household income across income deciles and across time. We find that out-of-pocket payments are regressive but the regressivity did decline in 1993/94 in response to a government initiative to improve the targeting of government subsidies towards lower income households.