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Se examinan las combinaciones de las predicciones o proyecciones inflacionarias en México mediante encuestas quincenales a expertos. La inflación de los precios al consumidor se mide dos veces cada mes empleando varios métodos de combinación. Se aconseja usar técnicas reductivas de la dimensión, ...


Poncela, PilarGuerrero, VíctorIslas C., AlejandroRodríguez, JulioSánchez-Mangas, RocíoMéxico: la combinación de las predicciones mensuales de inflación mediante encuestas

Drawing on results of a survey of Ugandan farmers who previously hosted bean (Phaseolus vulgaris L.) varietal trials, this paper reports on the adoption of three new bush bean cultivars and assesses the usefulness of post-trial surveys as a methodology for obtaining reliable early feedback on var...


David, S.Wortmann, Charles S.Kasozi, SMugisha-Mutetikka, M[Using trial follow-up surveys to assess varietal adoption: The case of beans]Using trial follow-up surveys to assess varietal adoption: The case of beans
Holmann, Federico J.Rivas Ríos, LibardoPérez, E.Castro, C.Schuetz, P.Rodríguez, J.[The beef chain in Costa Rica : Identifying critical issues for promoting the modernization, efficiency, and competitiveness]The beef chain in Costa Rica : Identifying critical issues for promoting the modernization, efficiency, and competitiveness

Strong gradients of decreasing soil fertility are found with increasing distance from the homestead within smallholder African farms, due to differential resource allocation. As nutrient use efficiency varies strongly along these gradients, such heterogeneity must be considered when designing soi...


Tittonell, Pablo A.Vanlauwe, BernardLeffelaar, P.A.Shepherd, Keith D.Giller, Ken E.[Exploring diversity in soil fertility management of smallholder farms in western Kenya. II. Within-farm variability in resource allocation, nutrient flows and soil fertility status]Exploring diversity in soil fertility management of smallholder farms in western Kenya. II. Within-farm variability in resource allocation, nutrient flows and soil fertility status

Common bean still is the basic food in the Walungu region and the almost only source of proteins. With farmers from Walungu in general and the women of the organisation Femmes solidaires pour le Développement du Bushi (FESODEBU) in particular, the team of the PNL/Mulungu has done a survey to defi...


Musungayi, TSperling, L.Graf, WLunze, L[Diagnostique spécifique - haricot commun - à Walungu]Diagnostique spécifique - haricot commun - à Walungu
Pachico, Douglas H.Thrupp, L.A.Vosti, SE[Guidelines & methodologies for socioeconomic & policy analysis: "Site characterization" in the "S & B" project]Guidelines & methodologies for socioeconomic & policy analysis: "Site characterization" in the "S & B" project
Díaz Duque, R.O.[Marco metodológico para la planeación de un proyecto de producción de yuca y cultivos asociados: aplicaciones del monitoreo]Marco metodológico para la planeación de un proyecto de producción de yuca y cultivos asociados: aplicaciones del monitoreo

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