There are a number of limitations associated with business demography data. These limitations include:
- Non-coverage of 'small' enterprises that fall below the economic significance criteria on the Stats NZ's Business Register (BR).
- Lags in recording business births and deaths.
- Difficulties in maintaining industrial and business classifications for smaller firms (that are primarily maintained using administrative data).
Business demography statistics are limited to economically significant individual, private-sector and public-sector enterprises that are engaged in the production of goods and services in New Zealand. These enterprises are maintained on the Stats NZ's Business Register, which generally includes all employing units and those enterprises with GST turnover greater than $30,000 per year.
Changes to data collection/processing
Up to 2015 business demography series was based on the Stats NZ Longitudinal Business Frame (LBF).
From 2016 business demography series is based on the Stats NZ Business Register (BR).