The objective of this proposition is to develop new modelling for assessing policies based on development and dissemination of environmental technologies. A precise assessment of the potential impacts of the introduction of environmental technologies needs two types of expertises:
-Knowledge on the characteristics of theses technologies (productivity of factors, emissions, wastes, obstacles and barriers to their adoption).
-The use of global quantitative methods i.e. of applied economic models that must take macro-economic feedbacks of policies into account; so the policies may be assessed with economic variables (competitiveness and growth, welfare, etc.),environmental variables (emissions, wastes, environmental welfare, etc.) and social variables (employment, inequalities, etc.).
Applied economic modelling is divided into two families, general equilibrium models and macro econometrics ones, these two types of models providing complementary advices: the econometric models are more oriented on the medium term consequences of policies and the general equilibrium on the long term; for these reasons, a complete assessment need the use of the two families. But in the state of the art, these models do not describe precisely enough the mechanisms of environmental technologies adoption. So, in order to achieve the objective of the project, we propose to modify the mechanism of two models, the econometric model NEMESIS and the two general equilibrium models GEM-E3 (EU-25 and World) for assessing policies that modify directly or indirectly the adoption of environmental technologies. The modification will be grounded on a deep knowledge of environmental technologies and will involve a new decision module for technology adoption. Three types of policies will be assessed with the new instruments: 3% RTD policies, generic environmental policies (based on eco axes or tradable permits) and, at last, policies directly based on environmental technologies adoption.
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