Methodology and usage - IOP | Department for the Economy

The NI Index of Production is designed and maintained to meet the requirements of a wide variety of users. A summary of these uses can be accessed by clicking on the document below. Methodological notes are also provided.

Documents

Summary of usage of the NI Index of Production
PDF (43 KB)

Changes to NI IOP estimates as a result of moving to X-13 ARIMA SEATS for seasonal adjustment affecting Q2 2014
PDF (362 KB)

Changes to Regional GVA estimates affecting Q3 2013 IOP index onwards, including back series
PDF (363 KB)

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