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Abstract
General equilibrium (GE) techniques have recently been used to simulate policy
impacts for neighbouring or different rural areas, thus focussing on the important
spatial aspect of such policies. A Social Accounting Matrix (SAM) represents
production, households, government, etc. in matrix form, while computable GE
models introduce greater behavioural flexibility at the cost of parameterisation.
Several SAM and CGE models have recently been built for rural regions, while others
have tried to represent rural-urban linkages.
This paper presents two SAM applications, and one current CGE approach. The first
SAM was developed for the analysis of the economic impact of Objective 1 policy on
six remote rural areas, including two in Greece. Six specific regional SAMs were used
to quantify the growth-generation effects of EU policies and scenarios on these local
economies. The second effort used a hybrid three-area SAM for two different rural
areas and an adjacent city in Crete to assess the diffusion patterns of economic
impacts generated by three types of CAP measure in one of the rural areas. A CGE
example, from the ongoing TERA project, seeks to model the determinants of
economic agglomeration, and will attempt to cope with rural/urban distance and
environmental externalities.
Advantages of the SAM approach include its simplicity and availability of data and
software. Disadvantages include significant data needs, linear behaviour, no real
modelling of growth (development) or price changes, and the fact that some policies
apply to many sectors in unknown way. The CGE approach may overcome some of
these problems.