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Bosetti, Valentina
Tavoni, Massimo
De Cian, Enrica
Sgobbi, Alessandra
Year of Publication: 
Series/Report no.: 
Nota di lavoro // Fondazione Eni Enrico Mattei: Sustainable development 85.2009
WITCH is an energy-economy-climate model developed by the climate change group at FEEM. The model has been extensively used in the past 3 years for the economic analysis of climate change policies. WITCH is a hybrid top-down economic model with a representation of the energy sector of medium complexity. Two distinguishing features of the WITCH model are the representation of endogenous technological change and the game-theoretic set-up. Technological change is driven by innovation and diffusion processes, both of which feature international spillovers. World countries are grouped in 12 regions which interact with each other in a setting of strategic interdependence. This paper describes the updating of the base year data to 2005 and some new features: the inclusion of non-CO2 greenhouse gases and abatement options, the new specification of low carbon technologies and the inclusion of reducing emissions from deforestation and degradation.
Climate Policy
Hybrid Modelling
Integrated Assessment
Technological Change
Document Type: 
Working Paper

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