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	Provedor de dados AgEcon (4) Autor Alene, Arega D. (1) Chambers, Robert G. (1) Huhtala, Anni (1) Lambert, David K. (1) Raguragavan, Jananee (1) Sipilainen, Timo (1) White, Benedict (1) Wilson, William W. (1) Zeller, Manfred (1) Mais... Palavra-chave Distance functions (4) Crop Production/Industries (2) DEA (2) Environmental Economics and Policy (2) Q12 (2) Agri-environmental policy (1) Agricultural markets (1) Biodiversity (1) C21 (1) D24 (1) Efficiency (1) Ethiopia (1) Farm Management (1) H41 (1) Marketing (1) Mechanism design (1) Multiple outputs (1) Product quality (1) Q24 (1) Research and Development/Tech Change/Emerging Technologies (1) Mais... Tipo do documento Conference Paper or Presentation (2) Journal Article (1) Working or Discussion Paper (1) Ano 2011 (1) 2007 (1) 2005 (1) 2001 (1) País United States (4) Idioma Inglês (4)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última Technology adoption and farmer efficiency in multiple crops production in eastern Ethiopia: A comparison of parametric and non-parametric distance functions AgEcon Alene, Arega D.; Zeller, Manfred. This study compares the empirical performances of the parametric distance functions(PDF) and data envelopment analysis (DEA) with applications to adopters of improved cereal production technology in eastern Ethiopia. The results from both approaches revealed substantial technical inefficiencies of production among the sample farmers. Technical efficiency estimates obtained from the two approaches are positively and significantly correlated. However, the DEA approach is shown to be very sensitive to outliers as well as to the choice of orientation. The PDF results are relatively more robust. The results from the preferred PDF approach revealed that adopters of improved technology have average technical efficiencies of 79%, implying that they could... Tipo: Journal Article Palavras-chave: Multiple outputs; Distance functions; DEA; Technical efficiency; Ethiopia; Farm Management; Research and Development/Tech Change/Emerging Technologies. Ano: 2005 URL: http://purl.umn.edu/44089 COMPARING END-USE VALUES FOR NORTH DAKOTA HARD RED SPRING WHEAT VARIETIES AgEcon Lambert, David K.; Wilson, William W.. Markets for agricultural products may be inefficient when signals do not adequately reflect product characteristics important to market participants. Although preferences can be explicitly stated through price premiums or characteristic values can be determined via hedonic methods, the problem is compounded when product quality information is costly to obtain. Bundling of quality traits by variety can serve to signal product quality. A procedure is developed in this paper to derive the value of different varieties in meeting buyer demands. An application to the hard red spring market wheat both validates the ability of the procedure to distinguish among varieties, as well as provides empirical support to the existence of Akerlof's lemon market in the... Tipo: Working or Discussion Paper Palavras-chave: Agricultural markets; Product quality; Distance functions; Wheat; Crop Production/Industries; Marketing. Ano: 2001 URL: http://purl.umn.edu/23657 Agri-environmental Regulation on the Back of a Data Envelopment Analysis AgEcon White, Benedict; Raguragavan, Jananee; Chambers, Robert G.. A land retirement policy whereby land is taken out of agriculture and converted to natural vegetation or forestry has the potential to reduce environmental damage related to dryland salinity in Western Australia. This paper uses some recent results in the theory of directional distance functions (Chambers and Fare, 2004) to analyse alternative policy designs for a land retirement scheme. The results indicate that a fixed price scheme is inefficient compared with a first-best solution, but performs adequately. A scheme requiring a fixed proportion of area retired by all producers is inefficient. A separating solution, based on mechanism design, gives a small but significant increase in welfare compared to a fixed price scheme. Tipo: Conference Paper or Presentation Palavras-chave: Agri-environmental policy; Distance functions; Efficiency; Mechanism design; Environmental Economics and Policy; Q12. Ano: 2007 URL: http://purl.umn.edu/7963 Opportunity Costs of Providing Crop Diversity in Organic and Conventional Farming: Would Targeted Environmental Policies Make Economic Sense? AgEcon Sipilainen, Timo; Huhtala, Anni. Targeted environmental policies for farmlands may improve the cost-efficiency of conservation programs if one can identify the farms that produce public goods, or environmental outputs, with the least cost. We derive shadow values of producing crop diversity on conventional and organic crop farms to examine their opportunity costs of conservation. Non-parametric distance functions are estimated by applying data envelopment analysis to a sample of Finnish crop farms for the period 1994 – 2002. Our results show that there is variation in the shadow values between farms and the technologies adopted. The extent of cost heterogeneity and farms’ potential for specialization in the production of environmental outputs determine whether voluntary programs such as... Tipo: Conference Paper or Presentation Palavras-chave: Biodiversity; Shannon index; DEA; Distance functions; Shadow values; Crop Production/Industries; Environmental Economics and Policy; C21; D24; H41; Q12; Q24. Ano: 2011 URL: http://purl.umn.edu/114527 Registros recuperados: 4 Primeira ... 1 ... Última

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