The IMAGE CGE Model: Constructing the Base 1993 database

Ronnie O'Toole and Alan Matthews

Economic Papers from Trinity College Dublin, Economics Department

Abstract: The core database for IMAGE is the Irish Input-Output table from 1993, extended to a SAM (Social Accounting Matrix) to allow for the value added in the economy to accrue to one of the institutions in the economy. The model distinguishes 34 industries, the first eight of which relate to farm level production, making it by far the most disaggregated CGE model for Ireland thus far. There are two sources of commodities, namely domestic and overseas. There are nine occupational groups and three household types, namely urban, rural farm, and rural non-farm. This working paper details the construction of the domestic and imported inter-industry flow matrices at both basic and purchasers' prices, the factoral and institutional distribution of income, the final demand column vectors, margin matrices and model parameterisation. Given the model's agricultural focus, data issues relating to the modeling approach used for the Common Agricultural Policy are discussed in a separate section.

Date: 2002
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