Unité mixte de recherche 7235

Defining sustainability objectives

Vincent Martinet

[en]Two of the challenges of thinking sustainability are how to deal with potentially conicting issues and how to ensure intergenerational equity. In practice, policymakers define sustainability objectives by setting thresholds that act as constraints on indicators. When defining a specific objective, they usually do not take into account either potential conflicts with other objectives or the diffculty to achieve all of them over time. In this paper, we propose an approach that defines sustainability objectives represented by a set of constraints on indicators and their associated thresholds. This approach meets the challenges of sustainability because objectives are defined such that all the constraints can be satisfied at all times. The thresholds are interpreted as minimal rights to be guaranteed to all generations, in a Rawlsian equity perspective. To define them, we have developed a criterion, which is, from a mathematical point of view, a « generalized » maximin. Applying the criterion is a two-step process. Firstly, the set of achievable objectives, given the endowment of the economy, is defined, revealing the necessary trade-offs between them. Secondly, a static optimization of sustainability preferences on that set results in the proposed definition of sustainability objectives. We illustrate this approach by applying it to a canonical model often used to investigate sustainability issues (Dasgupta-Heal-Solow model; Review of Economic Studies 1974). We emphasize the relevance of this approach because it rationalizes the practice of using indicators to deal with sustainability in terms of the given challenge. We also discuss how to apply our approach to real sustainability issues.[/en]

AGENDA

jeudi 8 juin 2023

Doctorants

Sahil Chopra (Université Sorbonne Paris-Nord)

Economics of litigation : Securities class action with third-party funding

lundi 12 juin 2023

Law, Institutions and Economics in Nanterre (LIEN)

Arthur Silve (IAST / Univ. Laval)

TBA

jeudi 15 juin 2023

Lunch

Guillaume Pierné

TBA

lundi 19 juin 2023

Law, Institutions and Economics in Nanterre (LIEN)

Juan Mora-Sanguinetti (Banco de Espana)

TBA

mardi 20 juin 2023

Colloques et Workshops

Webinar TELE –Theoretical European Law & Economics

jeudi 22 juin 2023

Doctorants

Jules Chaperon

TBA

vendredi 1 septembre 2023

Professeurs invités

Ken Yahagi

lundi 18 septembre 2023

Colloques et Workshops

L’économie de la régulation entre intérêt public et intérêts privés : capture, conflits d’intérêts et revolving doors

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