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The Imaclim-R model: infrastructures, technical inertia and the costs of low carbon futures under imperfect foresight
Waisman H., Guivarch C., Grazi F., Hourcade J.C.
Climatic Change NC (2012) 1 - http://hal-enpc.archives-ouvertes.fr/hal-00719279
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Humanities and Social Sciences/Economies and finances
The Imaclim-R model: infrastructures, technical inertia and the costs of low carbon futures under imperfect foresight
H. Waisman 1, C. Guivarch 1, F. Grazi 1, 2, J.C. Hourcade 1
1:  Centre International de Recherche sur l'Environnement et le Développement (CIRED)
http://www.centre-cired.fr/
Centre de coopération internationale en recherche agronomique pour le développement [CIRAD] : UMR56 – CNRS : UMR8568 – École des Hautes Études en Sciences Sociales [EHESS] – Ecole des Ponts ParisTech – AgroParisTech
45 bis, avenue de la Belle Gabrielle - 94736 Nogent-sur-Marne Cedex
France
2:  Agence Française de Développement (AFD)
affiliation inconnue
Division of Economic Research, 5 rue Roland Barthes, Paris, 75012
France
This paper analyzes the transition costs of moving towards a low carbon society when the second-best nature of the economy is accounted for. We emphasize the consequences on mitigation costs of considering the interplay between a) technical systems inertia, including slow infrastructure turnover in transportation and construction; and b) imperfect foresight influencing investment decisions. To this end, the hybrid general equilibrium modeling framework I maclim-R is employed as it allows for transitory partial adjustments of the economy and captures their impact on the dynamics of economic growth. The modeling exercise quantitatively emphasizes the a) specific risks that the interplay between inertia and imperfect foresight leads to high macroeconomic costs of carbon abatement measures; b) opportunities of co-benefits from climate policies permitted by the correction of sub-optimalities in the reference scenarios. The article draws insights for the framing of future climate architectures by studying the role of measures that act complementarily to carbon pricing in the transport sector. In particular, reallocating public investment towards low-carbon transport infrastructure significantly reduces the overall macroeconomic costs of a given GHG stabilization target and even creates the room for long-term net economic benefits from climate policies. © 2012 Springer Science+Business Media B.V.
English

Climatic Change
Publisher Springer Verlag (Germany)
ISSN 0165-0009 (eISSN : 1573-1480)
Yes
international
published
2012
NC
1