Assessing the sustainability of optimal pollution paths in a world with inertia

Marc Leandri and Mabel Tidball ()
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Mabel Tidball: CEE-M - Centre d'Economie de l'Environnement - Montpellier - FRE2010 - INRA - Institut National de la Recherche Agronomique - UM - Université de Montpellier - CNRS - Centre National de la Recherche Scientifique - Montpellier SupAgro - Institut national d’études supérieures agronomiques de Montpellier

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Abstract: Most formal optimal pollution control models in environmental economics assume a constant natural assimilative capacity, despite the biophysical evidence on feedback effects that can degrade this environmental function, as is the case with the reduction of ocean carbon sinks in the context of climate change. The few models that do consider this degradation establish a bijective relation between the pollution stock and the assimilative capacity, thus ignoring the inertia mechanism at stake. Indeed the level of assimilative capacity is not solely determined by the current pollution stock but also by the history of this stock and by the length of time the ecosystem remains above the degradation threshold. We propose an inertia assessment tool that tests the sustainability of any benchmark optimal pollution path when the inertia of the assimilative capacity degradation process is taken into account. Our simulations show a strong sensitivity to both the inertia degradation speed and the discount rate, thus stressing the need for increased monitoring of natural assimilative capacity in environmental policies.

Keywords: optimal pollution control; assimilative capacity; inertia; ecosystem services; climate change (search for similar items in EconPapers)
Date: 2019
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Citations: View citations in EconPapers (1)

Published in Environmental Modeling & Assessment, 2019, 24 (2), pp.249-263. ⟨10.1007/s10666-018-9612-8⟩

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Working Paper: Assessing the sustainability of optimal pollution paths in a world with inertia (2017)
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Persistent link: https://EconPapers.repec.org/RePEc:hal:journl:hal-02626277

DOI: 10.1007/s10666-018-9612-8

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