Applied General Equilibrium Modelling ANNARES, STAGE and R23 Models

© Scott McDonald


STAGE_t is a ‘standard’ single country CGE model designed for use in the Single country and Recursive Dynamic (single country) training courses.

It is a development of the STAGE_1 model, and  includes additional behaviours and features: it is calibrated using data derived from a country specific SAM and various satellite accounts. The underlying approach to single country CGE modelling derives from the SAM approach to national accounting and the SAM approach to modelling; hence the model is explicitly consistent with the SNA and SEEA.

Model Features

The price system is built on basic and purchasers prices and therefore includes domestic trade and transport margins and commodity taxes. Trade is modelled using nested CES (imports) and CET (exports) functions with an adaptation to mitigate the impacts of small trade shares. Production is modelled using nested CES functions; all activities (industries) are modelled as multi product activities, i.e., the SAM is configured using a Supply and Use or an Input-Output table format, and are price responsive to prices when determining their output mixes (CET functions). There are multiple tax instruments on commodities, activities, factors and institutions and multiple sources of savings. The model is designed to include large numbers of factor (labour) and household accounts.

STAGE_t evolves as the needs of our training programmes evolve. The documentation available here reflects, as accurately as we can, the state of the model on the date on the front page of the technical document; it is often out of date.

The codes for STAGE_t are only supplied to participants of cgemod training courses.


STAGE_t is licensed under Creative Commons BY. ( ).


Technical Document