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Accueil du site → Doctorat → Allemagne → 2008 → Effective even when neglected : farmer groups and the diffusion of agroforestry innovations in rural communities of Eastern Africa

Technische Universität Dresden (2008)

Effective even when neglected : farmer groups and the diffusion of agroforestry innovations in rural communities of Eastern Africa

Darr, Dietrich

Titre : Effective even when neglected : Farmer groups and the diffusion of agroforestry innovations in rural communities of Eastern Africa

Auteur : Darr, Dietrich

Université de soutenance : Technische Universität Dresden

Grade : Doctor rerum silvaticarum (Dr. rer. silv.) 2008

Résumé
The purpose of the current dissertation is to explore the contribution of development-oriented farmer groups to the diffusion of innovations in rural communities of Kenya and Ethiopia, to identify the key factors that determine the effectiveness of diffusion, and to derive recommendations that aim at better utilizing the potential of groups for rural extension work. A profound review of four theoretical frameworks served to derive a multiple-pathway model of innovation diffusion that amalgamates major concepts of the social network and functional group theory. By accommodating multiplex social relationships and by facilitating analyses at multiple levels the model alleviates major conceptual shortcomings of previous research. The research employs a multiple case study design. Four peasant communities have been investigated that are largely comparable in respect with bio-physical conditions. The case studies aim to cover the maximum diversity with regard to the role of farmer groups in the prevailing extension approach, as well as the mode of group organization. Data collection tools comprise reconnaissance surveys, standardized household interviews (N=841), qualitative key informant and in-depth interviews, participant observation, and the review of secondary sources. Group and non-group social networks constitute the units of analysis. Inferential statistical analyses mainly used multivariate linear regression techniques.

Mots Clés : Innovation adoption, rural development, group extension

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Page publiée le 11 mars 2009, mise à jour le 12 mai 2019