The HAM is an experimental statistical series that uses several measures to understand housing affordability in New Zealand.
Affordability is calculated using data from Stats NZ's Integrated Data Infrastructure (IDI) to measure income at the household level.
There are three main measures of affordability, each of which can be applied to renting and potential first home buying. One is the percentage of households spending more than 30 percent of their income on housing. The second is the percentage of households with below average incomes after housing costs. A third is an affordability index.
