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Valuation of Ecosystem Services and Social Choice: The Impact of Deliberation in the context of two different Aggregation Rules

Mariam Sy, Charles Figuieres (), Hélène Rey-Valette, Richard Howarth and Rutger De Wit
Additional contact information
Mariam Sy: MARBEC
Hélène Rey-Valette: Université de Montpellier, CEE-M
Richard Howarth: Dartmouth College, Environmental Program
Rutger De Wit: CNRS, MARBEC

No 2022.05, Working Papers from FAERE - French Association of Environmental and Resource Economists

Abstract: This paper describes an empiric study of aggregation and deliberation – used during citizens' workshops – for the elicitation of collective preferences over 20 different ecosystem services (ESs) delivered by the Palavas coastal lagoons located on the shore of the Mediterranean Sea close to Montpellier (S. France). The impact of deliberation is apprehended by comparing the collectives preferences constructed with and without deliberation. The same aggregation rules were used before and after deliberation. We compared two different aggregation methods, i.e. Rapid Ecosystem Services Participatory Appraisal (RESPA) and Majority Judgement (MJ). RESPA had been specifically tested for ESs, while MJ evaluates the merit of each item, an ES in our case, in a predefined ordinal scale of judgment. The impact of deliberation was strongest for the RESPA method. This new information acquired from application of social choice theory is particularly useful for ecological economics studying ES, and more practically for the development of deliberative approaches for public policies.

Keywords: Services écosytémiques; Délibération; Agrégation (search for similar items in EconPapers)
JEL-codes: Q57 (search for similar items in EconPapers)
Pages: 27 pages
Date: 2022-09
New Economics Papers: this item is included in nep-agr, nep-cdm, nep-env and nep-lab
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Forthcoming in Social Choice and Welfare

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http://faere.fr/pub/WorkingPapers/Sy_Figuieres_Rey ... _FAERE_WP2022.05.pdf First version, 2022 (application/pdf)

Related works:
Working Paper: Valuation of ecosystem services and social choice: the impact of deliberation in the context of two different aggregation rules (2022)
Working Paper: Valuation of Ecosystem Services and Social Choice: The Impact of Deliberation in the context of two different Aggregation Rules (2021) Downloads
Working Paper: Valuation of Ecosystem Services and Social Choice: The Impact of Deliberation in the context of two different Aggregation Rules (2021) Downloads
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