By international standards, New Zealand's recent business cycle fluctu
ations have been exceptionally volatile. Fluctuations in central gover
nment and private fixed investment expenditure, the real net exports s
hare, the terms of trade and interest rates have also been particularl
y volatile. Many bivariate relationships change markedly over time, bu
t 'real variable regularity' is confirmed. Fluctuations in government
purchases have been acyclical. The real net exports share has been cou
ntercyclical overall, but procyclical most recently. Domestic price fl
uctuations have been basically countercyclical. The scale of changes o
ver the past decade continues to present difficulties for establishing
credible financial and open economy regularities.