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Imitation, rationalité et adoption de technologies d’irrigation améliorées à l’île de la Réunion

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  • Jean-Louis Fusillier
  • Lionel Richefort

Abstract

[eng] This article presents a theoretical framework that uses an epidemic diffusion model and a rational choice model to conceptualize the decision to adopt a given technology. We estimate both models on a sample of 114 farmers in Reunion Island. The results show that the diffusion of new drip-irrigation technology was driven by a spontaneous dynamic with collective knock-on effects. In such circumstances, subsidies may quicken diffusion. By contrast, the adoption of an improved, automation-based irrigation technology reflects a rational choice by the most diversified, best informed irrigators with the highest land / labor ratio. [fre] Nous développons un référentiel théorique qui conceptualise la décision d’adopter une technologie donnée en mobilisant un modèle de diffusion épidémiologique et un modèle des choix rationnels d’adoption. Les deux modèles sont estimés à partir d’un échantillon de 114 agriculteurs localisés à l’île de la Réunion. Les résultats montrent que la diffusion de la couverture intégrale pour l’aspersion répond à une dynamique spontanée avec effets d’entraînement collectif. Une politique de subvention, dans ce cas-là, permet d’accélérer le rythme de diffusion. L’adoption d’une technologie d’irrigation améliorée avec automatismes répond plus à un choix rationnel de la part des irrigants les plus diversifiés, les mieux informés et au rapport surface par actif le plus important.

Suggested Citation

  • Jean-Louis Fusillier & Lionel Richefort, 2010. "Imitation, rationalité et adoption de technologies d’irrigation améliorées à l’île de la Réunion," Économie et Prévision, Programme National Persée, vol. 193(2), pages 59-73.
  • Handle: RePEc:prs:ecoprv:ecop_0249-4744_2010_num_193_2_8034
    Note: DOI:10.3406/ecop.2010.8034
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    References listed on IDEAS

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