PEP 1-t model

Long Name
PEP Standard Computable General Equilibrium Model Single-Country, Recursive Dynamic Version
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The PEP 1-t model is a recursive dynamic general equilibrium model. It follows the PEP 1-1 single-country, single-period model that emerged from a collaboration between Bernard Decaluwe, André Lemelin, Véronique Robichaud, and Hélène Maisonnave. The model is designed for the study of an archetypal national economy. It will enable researchers to develop a relatively standard model and apply it easily to their own country, whatever the particular structure of their Social Accounting Matrix (SAM). Like the static model (PEP 1-1), the PEP1-t model distinguishes several categories of factors (labor and capital). It also takes into account all possible transfers between agents and a large set of tax instruments. Furthermore, the aggregate output of each industry consists of several products, consistent with non-square input-output tables. The authors have also written the GAMS code in a general form in order to facilitate the application of the model to a broader set of aggregated SAMs.

The GAMS codes of PEP 1-t model are available to AGRODEP members.

Download the GAMS codes.

The following additional resources are available to AGRODEP members:

A new version (2.1) of the model is now available on the PEP website. The principal changes include a reformulation of the GDP deflator, an introduction of new real (volume) variables, an external excel file which contains the exogenous parameters and a new calibration procedure of the quantity demanded of the composite commodity.

Disclaimer: All these materials are freely available to AGRODEP members for individual use with acknowledgment to AGRODEP. They should not be distributed to non AGRODEP network members and may not be transformed, altered, or used for commercial purposes. Readers who have questions and comments about the documents may contact Veronique Robichaud at the following address: or Hélène Maisonnave at:

First released on
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May not be distributed to non AGRODEP Network Members.