This article is from the New Zealand FAQ, by Phil Stuart-Jones and Lin Nah with numerous contributions by others.
Basically, it goes something like this:
Professor(s)
Associate Professors/Readers (depends on department)
Senior Lecturers
Lecturers
There are also Head of Departments, Deans, etc., which may or may not be
professors, although they are usually pretty senior.
In NZ universities, a Professorship is a *very* prestigious title. There
may be a rough equivalence between a US associate professor and a NZ
lecturer, and a US professor and NZ senior lecturer. There is likely to be
some overlap.
Per department there is about 1 professor per approx 10 'lower' positions.
For example, in Electrical Engineering at Canterbury there are currently 2
professors, 3 associate professors, 9 senior lecturers, and 5 lecturers
(from the 1994 calendar).
 
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