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Optimal Control Models and Elicitation of Attitudes towards Climate Damages

In: Uncertainty and Environmental Decision Making

Author

Listed:
  • Philippe Ambrosi

    (The World Bank, Climate Change Team)

  • Jean-Charles Hourcade

    (CIRED, Jardin Tropical)

  • Stéphane Hallegatte

    (CIRED, Jardin Tropical
    Ecole Nationale de la Météorologie)

  • Franck Lecocq

    (INRA
    AgroParisTech, Engref, Laboratoire d’ économie forestière)

  • Patrice Dumas

    (CIRED, Jardin Tropical)

  • Minh Ha Duong

    (CIRED, Jardin Tropical)

Abstract
This paper examines the consequences of various attitudes towards climate damages through a family of stochastic optimal control models (RESPONSE): cost-effectiveness for a given temperature ceiling; cost-benefit analysis with a “pure preference for current climate regime” and full cost-benefit analysis. The choice of a given proxy of climate change risks is actually more than a technical option. It is essentially motivated by the degree of distrust regarding the legitimacy of an assessment of climate damages and the possibility of providing in due time reliable and non controversial estimates. Our results demonstrate that (a) for early decades abatement, the difference between various decision-making frameworks appears to matter less than the difference between stochastic and non stochastic approach given the cascade of uncertainty from emissions to damages; (b) in a stochastic approach, the possibility of non-catastrophic singularities in the damage function is sufficient to significantly increase earlier optimal abatements; (c) a window of opportunity for action exists up to 2040: abatements further delayed may induce significant regret in case of bad news about climate response or singularities in damages.

Suggested Citation

  • Philippe Ambrosi & Jean-Charles Hourcade & Stéphane Hallegatte & Franck Lecocq & Patrice Dumas & Minh Ha Duong, 2009. "Optimal Control Models and Elicitation of Attitudes towards Climate Damages," International Series in Operations Research & Management Science, in: Jerzy A. Filar & Alain Haurie (ed.), Uncertainty and Environmental Decision Making, chapter 0, pages 177-209, Springer.
    • Handle: RePEc:spr:isochp:978-1-4419-1129-2_6
    DOI: 10.1007/978-1-4419-1129-2_6
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