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A methodology to explore the determinants of eco-efficiency by combining an agronomic whole-farm simulation model and efficient frontier

Author

Listed:
  • David Berre

    (CIRAD - Centre de Coopération Internationale en Recherche Agronomique pour le Développement)

  • Jonathan Vayssières

    (UMR SELMET - Systèmes d'élevage méditerranéens et tropicaux - Montpellier SupAgro - Institut national d’études supérieures agronomiques de Montpellier - Montpellier SupAgro - Centre international d'études supérieures en sciences agronomiques - CIRAD - Centre de Coopération Internationale en Recherche Agronomique pour le Développement - INRA - Institut National de la Recherche Agronomique, PPZS - DP-Pôle Pastoralisme Zones Sèches (Dispositif de Partenariat) - CIRAD - Centre de Coopération Internationale en Recherche Agronomique pour le Développement - ISRA - CSE - Université Cheikh Anta DiopEcole Nationale d'Economie Appliquée)

  • Jean-Philippe Boussemart

    () (UFR MIME - UFR de Mathématiques, Informatique, Management, Economie - Université de Lille, Sciences Humaines et Sociales, IESEG - School of Management, LEM - Lille économie management - LEM - UMR 9221 - UCL - Université catholique de Lille - Université de Lille - CNRS - Centre National de la Recherche Scientifique)

  • Herve Leleu

    () (Economy - UCL - Université catholique de Lille, LEM - Lille économie management - LEM - UMR 9221 - UCL - Université catholique de Lille - Université de Lille - CNRS - Centre National de la Recherche Scientifique)

  • Emmanuel Tillard

    (CIRAD - Centre de Coopération Internationale en Recherche Agronomique pour le Développement)

  • Philippe Lecomte

    (UMR SELMET - Systèmes d'élevage méditerranéens et tropicaux - Montpellier SupAgro - Institut national d’études supérieures agronomiques de Montpellier - Montpellier SupAgro - Centre international d'études supérieures en sciences agronomiques - CIRAD - Centre de Coopération Internationale en Recherche Agronomique pour le Développement - INRA - Institut National de la Recherche Agronomique)

Abstract

Growing awareness of the multiple environmental impacts of livestock production has created a need to extend the definition of efficiency to a multidimensional eco-efficiency concept. Our paper proposes an original methodology, named "simulation based DEA" that combines an agronomic whole-farm model and an efficient frontier method for in-depth exploration of the determinants of eco-efficiency. GAMEDE, the whole-farm model we use, is randomly parameterized for key management practices and structural parameters to generate a large dataset of simulated dairy systems. The upper and lower bounds set for the stochastic choice of parameter values are a key point in the methodology and rely on expert knowledge derived from participatory modelling. For each simulation, numerous indicators describing the functioning and the performance of the production system are calculated and a set of inputs, outputs, and undesirable outputs, are then used to define the production technology in an efficiency frontier analysis. Data envelopment analysis, the efficiency frontier method applied, provides a multidimensional eco-efficiency score representing the increase in outputs that is possible with no increase in inputs or undesirable outputs. The eco-efficiency score can be linked to all the indicators of the production system calculated by the whole-farm model, after which it becomes possible to explore the managerial, structural, economic, agronomic, zootechnical, and environmental factors that explain different levels of eco-efficiency. In our case study, dairy farming in Reunion Island, livestock production is strongly constrained by land scarcity. Consequently the most eco-efficient farms appear to be intensive systems with high forage productivity to ensure feed self-sufficiency. While most studies on efficiency are restricted to a narrow dataset, the proposed methodology is innovative in that it makes it possible to cover a wide range of possible livestock farming systems in a given territory, including systems that do not exist at the present time, and to characterize them using multiple descriptive variables, at a limited cost in time and in the cost of surveys. Coupling whole-farm models and efficiency frontier analysis is a promising way to accurately identify the determinants of eco-efficiency and ecological intensification pathways.

Suggested Citation

  • David Berre & Jonathan Vayssières & Jean-Philippe Boussemart & Herve Leleu & Emmanuel Tillard & Philippe Lecomte, 2015. "A methodology to explore the determinants of eco-efficiency by combining an agronomic whole-farm simulation model and efficient frontier," Post-Print hal-01526029, HAL.
  • Handle: RePEc:hal:journl:hal-01526029
    Note: View the original document on HAL open archive server: https://hal.archives-ouvertes.fr/hal-01526029
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    1. repec:gam:jsusta:v:9:y:2017:i:9:p:1634-:d:112002 is not listed on IDEAS
    2. repec:eee:ejores:v:274:y:2019:i:1:p:186-198 is not listed on IDEAS

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