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Are subsidies to weather-index insurance the best use of public funds? A bio-economic farm model applied to the Senegalese groundnut basin

Ricome Aymeric, Affholder François, Gérard Françoise, Muller Bertrand, Poeydebat Charlotte, Quirion Philippe, Sall Moussa. 2017. Are subsidies to weather-index insurance the best use of public funds? A bio-economic farm model applied to the Senegalese groundnut basin. Agricultural Systems, 156 : 149-176.

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Quartile : Outlier, Sujet : AGRICULTURE, MULTIDISCIPLINARY

Résumé : While crop yields in Sub-Saharan Africa are low compared to most other parts of the world, weather-index insurance is often presented as a promising tool, which could help resource-poor farmers in developing countries to invest and adopt yield-enhancing technologies. Here, we test this hypothesis on two contrasting areas (in terms of rainfall scarcity) of the Senegalese groundnut basin through the use of a bio-economic farm model, coupling the crop growth model CELSIUS with the economic model ANDERS, both specifically designed for this purpose. We introduce a weather-index insurance whose index is currently being used for pilot projects in Senegal and West Africa. Results show that insurance leads to a welfare gain only for those farmers located in the driest area. These farmers respond to insurance mostly by increasing the amount of cow fattening, which leads to higher crop yields thanks to the larger production of manure. We also find that subsidizing insurance is not the best possible use of public funds: for a given level of public funding, reducing credit rates, subsidizing fertilizers, or just transferring cash as a lump-sum generally brings a higher expected utility to farmers and leads to a higher increase in grain production levels.

Mots-clés Agrovoc : sécheresse, ferme pilote, intensification, Arachis hypogaea, analyse économique, rendement des cultures, modélisation des cultures, modèle de simulation, modèle mathématique, système d'aide à la décision, assurance, agriculteur, conditions météorologiques

Mots-clés géographiques Agrovoc : Sénégal

Classification Agris : F01 - Culture des plantes
U10 - Informatique, mathématiques et statistiques
P40 - Météorologie et climatologie
H50 - Troubles divers des plantes

Champ stratégique Cirad : Axe 1 (2014-2018) - Agriculture écologiquement intensive

Auteurs et affiliations

  • Ricome Aymeric, IRD (FRA)
  • Affholder François, CIRAD-PERSYST-UPR AIDA (FRA)
  • Gérard Françoise, CIRAD-ES-UPR GREEN (FRA)
  • Muller Bertrand, CIRAD-BIOS-UMR AGAP (MDG)
  • Poeydebat Charlotte, CIRAD-PERSYST-UPR GECO (FRA)
  • Quirion Philippe, CNRS (FRA)
  • Sall Moussa, ISRA (SEN)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/584957/)

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