Usages et effets de la microsimulation dans l’élaboration d’une réforme. Un nouvel éclairage sur la création du RSA

Do economists make policies? This article takes a fresh look at this classic question by seeking to understand the capacity of microsimulation evaluation to contribute to the design of a reform. Taking as our case study the creation of the Revenu de Solidarité Active (Active Solidarity Income) betwe...

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Main Authors: Franck Bessis, Paul Cotton
Format: Article
Language:English
Published: Association Recherche & Régulation 2025-01-01
Series:Revue de la Régulation
Subjects:
Online Access:https://journals.openedition.org/regulation/24733
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author Franck Bessis
Paul Cotton
author_facet Franck Bessis
Paul Cotton
author_sort Franck Bessis
collection DOAJ
description Do economists make policies? This article takes a fresh look at this classic question by seeking to understand the capacity of microsimulation evaluation to contribute to the design of a reform. Taking as our case study the creation of the Revenu de Solidarité Active (Active Solidarity Income) between 2005 and 2008, we highlight three main uses for this instrument of economic expertise and evaluation of socio-fiscal legislation. A demonstrative use of microsimulation models produces reality effects: the figures obtained make a project more concrete and credible. An exploratory use produces knowledge effects: simulating leads to the formulation of new questions and the design of innovative answers responses to the initial project. Finally, a deductive use allows us to translate the political trade-offs and saturate the resulting constraints to obtain the precise parameters of the reform. The article thus fills the gap left by a whole body of work on the creation of the RSA, which largely ignored microsimulation because it focused on the debates surrounding its experimentation and incentives.
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spelling doaj-art-0d3b016535ef4993a71a6a2fd5169b402025-01-30T14:25:49ZengAssociation Recherche & RégulationRevue de la Régulation1957-77962025-01-013710.4000/131a6Usages et effets de la microsimulation dans l’élaboration d’une réforme. Un nouvel éclairage sur la création du RSAFranck BessisPaul CottonDo economists make policies? This article takes a fresh look at this classic question by seeking to understand the capacity of microsimulation evaluation to contribute to the design of a reform. Taking as our case study the creation of the Revenu de Solidarité Active (Active Solidarity Income) between 2005 and 2008, we highlight three main uses for this instrument of economic expertise and evaluation of socio-fiscal legislation. A demonstrative use of microsimulation models produces reality effects: the figures obtained make a project more concrete and credible. An exploratory use produces knowledge effects: simulating leads to the formulation of new questions and the design of innovative answers responses to the initial project. Finally, a deductive use allows us to translate the political trade-offs and saturate the resulting constraints to obtain the precise parameters of the reform. The article thus fills the gap left by a whole body of work on the creation of the RSA, which largely ignored microsimulation because it focused on the debates surrounding its experimentation and incentives.https://journals.openedition.org/regulation/24733evaluationexpertisepublic policieseconomic policymakingmicrosimulationsocial policies
spellingShingle Franck Bessis
Paul Cotton
Usages et effets de la microsimulation dans l’élaboration d’une réforme. Un nouvel éclairage sur la création du RSA
Revue de la Régulation
evaluation
expertise
public policies
economic policymaking
microsimulation
social policies
title Usages et effets de la microsimulation dans l’élaboration d’une réforme. Un nouvel éclairage sur la création du RSA
title_full Usages et effets de la microsimulation dans l’élaboration d’une réforme. Un nouvel éclairage sur la création du RSA
title_fullStr Usages et effets de la microsimulation dans l’élaboration d’une réforme. Un nouvel éclairage sur la création du RSA
title_full_unstemmed Usages et effets de la microsimulation dans l’élaboration d’une réforme. Un nouvel éclairage sur la création du RSA
title_short Usages et effets de la microsimulation dans l’élaboration d’une réforme. Un nouvel éclairage sur la création du RSA
title_sort usages et effets de la microsimulation dans l elaboration d une reforme un nouvel eclairage sur la creation du rsa
topic evaluation
expertise
public policies
economic policymaking
microsimulation
social policies
url https://journals.openedition.org/regulation/24733
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