Dear Shanta, Such a Survey would be very much welcome indeed. In the OECD, CGE models have influenced the policy debate about global North-South issues, such as climate change. In the early 1990s, the GREEN model provided evidence on the differences in marginal abatement costs between OECD and developping countries, illustrating the potential cost efficiencies related to carbon trading. The model was also instrumental in predicting the increasing penetration of coal in primary energy demand of major emerging markets. Model's results also highlighted for example sensitive policy issues, such as the famous "carbon leakages" problem. Perhaps a even more influential role in shapping policies would have been obtained if the investment in this type of models could have been sustained over time. Structural modelling, like statistics, is a key input for the much wished "evidence-based policy making". Below are some references to the work with the GREEN Model. Best, Joaquim -Burniaux, Nicoletti and Oliveira Martins (1992), "GREEN: A Global Model for Quantifying the Costs of Policies to Curb CO2 Emissions", OECD Economic Studies, no. 19. -Oliveira Martins, Burniaux and Martin (1992), "Trade and the Effectiveness of Unilateral CO2-Abatement Policies", OECD Economic Studies, no. 19. -OECD (1995) Global Warming: Economic Dimensions and Policy Responses, OECD, Paris.