Evaluating agro-environmental schemes by DID matching: theoretical justification, robustness tests and application to a French program
2010
Chabe-Ferret, Sylvain | Subervie, Julie | Mutations des activités des espaces et des formes d'organisation dans les territoires ruraux (UMR METAFORT) ; Institut National de la Recherche Agronomique (INRA)-AgroParisTech-Centre national du machinisme agricole, du génie rural, des eaux et forêts (CEMAGREF)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS) | Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA) | Marchés, Organisations, Institutions et Stratégies d'Acteurs (UMR MOISA) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Centre International de Hautes Etudes Agronomiques Méditerranéennes - Institut Agronomique Méditerranéen de Montpellier (CIHEAM-IAMM) ; Centre International de Hautes Études Agronomiques Méditerranéennes (CIHEAM)-Centre International de Hautes Études Agronomiques Méditerranéennes (CIHEAM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)
Congrès organisé par l'AERE : Association of Environmental and Ressource Economists<br/>Congrès organisé par l'AERE : Association of Environmental and Ressource Economists
Mostrar más [+] Menos [-]Inglés. We extend the literature applying treatment effects methods to the evaluation of agro-environmental schemes (AES) in three ways. First, we derive the statistical assumptions underlying Difference-in- Difference matching as restrictions on an economic model. These restrictions are consistent with what we know about the practical implementation of the program. The model also provides guidance for selecting control variables. Second, we present the first disaggregated estimation of the effects of a nationwide AES program on environmentally-relevant practices for a nationally representative sample of farmers. Third, we test the robustness of our findings confronting them with a credible alternative identification strategy. Our results suggest that voluntary AES programs that seek to reduce nitrogen use and encourage crop diversification may have large windfall effects. In contrast, more ambitious AESs such as conversion to organic farming, which combine strong requirements with large payments, seem to have achieved their goals.
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