The current and beloved article of faith amongst leftists is rising inequality.
Here's a very recent example from Boxing Day:
Inequality keeps rising, says UC social research expert
Earlier in the year I was fortunate enough to be sent a hard copy of the latest Household Incomes report by its author. Lucky because a request to MSD went unacknowledged and it's such a lengthy, comprehensive report a printed reference copy does wonders for data ease of accessibility and my good humour. Thank you Bryan Perry.
Here's the graph that should accompany every press release about growing inequality.
This is the official measure of inequality in New Zealand. The trend line can best be described as declining albeit slowly.