The 2008 Witch Model: New Model Features and Baseline

49 Pages Posted: 24 Nov 2009 Last revised: 9 Jan 2010

See all articles by Enrica De Cian

Enrica De Cian

Fondazione Eni Enrico Mattei (FEEM); CMCC - Centro Euro-Mediterraneo sui Cambiamenti Climatici

Valentina Bosetti

Bocconi University; CMCC - Euro Mediterranean Centre for Climate Change

Alessandra Sgobbi

Fondazione Eni Enrico Mattei (FEEM) ; CMCC - Centro Euro-Mediterraneo sui Cambiamenti Climatici

Massimo Tavoni

Fondazione Eni Enrico Mattei (FEEM); Princeton University - Princeton Environmental Institute

Date Written: November 24, 2009

Abstract

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.

Keywords: Climate Policy, Hybrid Modelling, Integrated Assessment, Technological Change

JEL Classification: O33, O41, Q43

Suggested Citation

De Cian, Enrica and Bosetti, Valentina and Sgobbi, Alessandra and Tavoni, Massimo, The 2008 Witch Model: New Model Features and Baseline (November 24, 2009). FEEM Working Paper No. 85.2009; CMCC Research Paper No. 67. Available at SSRN: https://ssrn.com/abstract=1512475 or http://dx.doi.org/10.2139/ssrn.1512475

Enrica De Cian (Contact Author)

Fondazione Eni Enrico Mattei (FEEM) ( email )

Campo S. M. Formosa, Castello 5252
Venice, 30122
Italy

CMCC - Centro Euro-Mediterraneo sui Cambiamenti Climatici ( email )

via Augusto Imperatore, 16
Lecce, I-73100
Italy

Valentina Bosetti

Bocconi University

Via Gobbi 5
Milan, 20136
Italy

CMCC - Euro Mediterranean Centre for Climate Change

via Augusto Imperatore, 16
Lecce, I-73100
Italy

Alessandra Sgobbi

Fondazione Eni Enrico Mattei (FEEM) ( email )

Corso Magenta 63
20123 Milan
Italy

CMCC - Centro Euro-Mediterraneo sui Cambiamenti Climatici ( email )

via Augusto Imperatore, 16
Lecce, I-73100
Italy

Massimo Tavoni

Fondazione Eni Enrico Mattei (FEEM) ( email )

Corso Magenta 63
20123 Milan
Italy

Princeton University - Princeton Environmental Institute

22 Chambers Street
Princeton, NJ 08544-0708
United States

Here is the Coronavirus
related research on SSRN

Paper statistics

Downloads
62
Abstract Views
680
rank
368,074
PlumX Metrics