Sectors and Themes
Energy
Expertise Level
Specialist
Resource Type
Analysis Tools
Inputs Needed
Gross domestic product
Population
Climate policies
Resource use
Population
Climate policies
Resource use
Outputs Provided
Gross domestic product
Population growth
Primary energy
Electricity consumption
Population growth
Primary energy
Electricity consumption
Language
English
Developer or Source
Fondazione Eni Enrico Mattei (FEEM)
World Induced Technical Change Hybrid (WITCH) Model is a software model designed to assist in the study of the socio-economic dimensions of climate change and to help policy makers understand the economic consequences of climate policies. The model that incorporates a hybrid top-down optimization structure with a detailed bottom-up energy sector input component. The model can track all of the actions which impact the level of mitigation—such as R&D expenditures, investment in carbon-free technologies and adaptation, purchases of emission permits, or expenditures for carbon taxes—and thus allows for the evaluation of the equilibrium responses stimulated by different climate policy tools.