Every month (except January), the ANZ surveys business managers, recording their opinions in a broad range of areas, and reporting them in their Business Outlook reports.

They ask questions in two key areas:

1. With regard to the New Zealand economy ...
2. With regard to Your Buisiness ...

The Business Confidence measure is from the first area, from this question:

"Do you believe that General Business Conditions in 12 months time will have ...
- improved?
- remain the same?
- deteriorated?"

You should note that this is different from asking about how your own firm will do over the same period, which is a separate question, and tracked in a separate chart.