OECD economic projections are supported by a range of analytical tools. 

The OECD Interlink model provides a tool to help ensure a consistent set of paths for key economic variables.   The Outlook is also informed by a series of models that extract information from high frequency and leading indicator series. 

As well, methods for calculating estimates of key economic variables which bear on the evaluation of policy requirements are regularly reviewed.  These include estimates of output gaps, potential growth, NAIRUs and a structural and cyclical decomposition of government fiscal positions.