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Processus de sélection des technologies d'irrigation par les agriculteurs : entre interactions sociales et choix rationnels

Abstract : This PhD thesis is devoted to the economic analysis of the process of irrigation technologies adoption by farmers under the effect of public incentives, imitation and private rationality. The aim of the first chapter is to analyze the factors affecting the diffusion of irrigation technologies in La Reunion Island (France). A survey on irrigated farms combined with a review of the empirical literature allow us to cluster these key factors within three axes: farmers' characteristics, farmers' adoption context characteristics and irrigation technology characteristics. Two theoretical frameworks conceptualizing these key factors are then discussed: the neoclassical approach and the evolutionary approach. In the second chapter, a conceptual framework is designed to assess the impact of public incentives on the selection process of a new irrigation technology by a population of farmers. A methodology, allowing estimating the parameters of diffusion, is developed and applied to the diffusion of the sprinkler integral cover system in La Reunion Island over period 1990-2006. Results show that the characteristic diffusion path is not perfectly symmetric and is significantly affected by equipment subsidies. In the third chapter, a probabilistic framework is tested for evaluating the role played by the determinants of the selection process of new irrigation technologies at the farm-level. Finally, this thesis defends the idea of a differentiation of the diffusion processes, and so of the relevant explicative models, according to the complexity of the innovative equipment.
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https://tel.archives-ouvertes.fr/tel-00409012
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Submitted on : Tuesday, August 4, 2009 - 4:59:25 PM
Last modification on : Friday, October 23, 2020 - 4:44:41 PM
Long-term archiving on: : Tuesday, June 15, 2010 - 10:04:32 PM

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  • HAL Id : tel-00409012, version 1

Citation

Lionel Richefort. Processus de sélection des technologies d'irrigation par les agriculteurs : entre interactions sociales et choix rationnels. Economies et finances. Université de la Réunion, 2008. Français. ⟨tel-00409012⟩

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