The WITCH 2016 Model - Documentation and Implementation of the Shared Socioeconomic Pathways

63 Pages Posted: 27 Jun 2016 Last revised: 4 Mar 2017

See all articles by Johannes Emmerling

Johannes Emmerling

CMCC - Centro Euro-Mediterraneo sui Cambiamenti Climatici - European Institute onEconomy and the Environment (EIEE)

Laurent Drouet

Fondazione Eni Enrico Mattei (FEEM)

Lara Reis

Fondazione Eni Enrico Mattei (FEEM)

Michela Bevione

Fondazione Eni Enrico Mattei (FEEM)

Loïc Berger

Fondazione Eni Enrico Mattei (FEEM)

Valentina Bosetti

Bocconi University; CMCC - Euro Mediterranean Centre for Climate Change

Samuel Carrara

CMCC - Centro Euro-Mediterraneo sui Cambiamenti Climatici

Enrica De Cian

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

Gauthier de Maere d'Aertrycke

Fondazione Eni Enrico Mattei

Thomas Longden

Macquarie University, Macquarie Business School; CMCC - Centro Euro-Mediterraneo sui Cambiamenti Climatici

Maurizio Malpede

Fondazione Eni Enrico Mattei (FEEM)

Giacomo Marangoni

Fondazione Eni Enrico Mattei

Fabio Sferra

Fondazione Eni Enrico Mattei (FEEM)

Massimo Tavoni

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

Jan Witajewski-Baltvilks

Fondazione Eni Enrico Mattei (FEEM)

Petr Havlík

International Institute for Applied Systems Analysis (IIASA)

Date Written: June 17, 2016

Abstract

This paper describes the WITCH - World Induced Technical Change Hybrid - model in its structure, calibration, and the implementation of the SSP/RCP scenario implementation. The WITCH model is a regionally disaggregated hard-linked model based on a Ramsey type optimal growth model and a detailed bottom-up energy sector model. A particular focus of the model is the modeling or technical change and RnD investments and the analysis of cooperative and non-cooperative climate policies. Moreover, the WITCH 2016 version now includes land-use change modeling based on the GLOBIOM model, and air pollutants, as well as detailed modeling of the transport sector and the possibility for stochastic modeling. This version has been also used to implement the Shared Socioeconomic Pathways (SSPs) set of scenarios and RCP based climate policies to provide a new set of climate scenarios. In this paper, we describe in detail the mathematical formulation of the WITCH model, the solution method and calibration, as well as the implementation of the five SSP scenarios. This report therefore provides detailed information for interested users of the model, and for understanding the implementation of the different "worlds" of the SSP.

Keywords: Integrated Assessment Model, SSPs, Climate Change, Scenarios

JEL Classification: Q54, C63

Suggested Citation

Emmerling, Johannes and Drouet, Laurent and Reis, Lara and Bevione, Michela and Berger, Loïc and Bosetti, Valentina and Carrara, Samuel and De Cian, Enrica and de Maere d'Aertrycke, Gauthier and Longden, Thomas and Malpede, Maurizio and Marangoni, Giacomo and Sferra, Fabio and Tavoni, Massimo and Witajewski-Baltvilks, Jan and Havlík, Petr, The WITCH 2016 Model - Documentation and Implementation of the Shared Socioeconomic Pathways (June 17, 2016). FEEM Working Paper No. 42.2016. Available at SSRN: https://ssrn.com/abstract=2800970 or http://dx.doi.org/10.2139/ssrn.2800970

Johannes Emmerling (Contact Author)

CMCC - Centro Euro-Mediterraneo sui Cambiamenti Climatici - European Institute onEconomy and the Environment (EIEE) ( email )

Via Bergognone, 34
Milan
Italy

Laurent Drouet

Fondazione Eni Enrico Mattei (FEEM) ( email )

C.so Magenta 63
Milano, 20123
Italy

Lara Reis

Fondazione Eni Enrico Mattei (FEEM) ( email )

C.so Magenta 63
Milano, 20123
Italy

Michela Bevione

Fondazione Eni Enrico Mattei (FEEM) ( email )

C.so Magenta 63
Milano, 20123
Italy

Loïc Berger

Fondazione Eni Enrico Mattei (FEEM) ( email )

C.so Magenta 63
Milano, 20123
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

Samuel Carrara

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

via Augusto Imperatore, 16
Lecce, I-73100
Italy

Enrica De Cian

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

Gauthier De Maere d'Aertrycke

Fondazione Eni Enrico Mattei ( email )

C.so Magenta 63
Milano, 20123
Italy

Thomas Longden

Macquarie University, Macquarie Business School ( email )

New South Wales 2109
Australia

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

via Augusto Imperatore, 16
Lecce, I-73100
Italy

Maurizio Malpede

Fondazione Eni Enrico Mattei (FEEM) ( email )

C.so Magenta 63
Milano, 20123
Italy

Giacomo Marangoni

Fondazione Eni Enrico Mattei ( email )

C.so Magenta 63
Milano, 20123
Italy

Fabio Sferra

Fondazione Eni Enrico Mattei (FEEM) ( email )

Corso Magenta 63
20123 Milan
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

Jan Witajewski-Baltvilks

Fondazione Eni Enrico Mattei (FEEM) ( email )

C.so Magenta 63
Milano, 20123
Italy

Petr Havlík

International Institute for Applied Systems Analysis (IIASA) ( email )

Schlossplatz 1
Laxenburg, A-2361
Austria

Register to save articles to
your library

Register

Paper statistics

Downloads
100
Abstract Views
725
rank
267,488
PlumX Metrics