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	Provedor de dados AgEcon (6) Autor Winter-Nelson, Alex (6) Isik, Murat (3) Khanna, Madhu (3) Argwings-Kodhek, Gem (1) Liverpool-Tasie, Lenis Saweda O. (1) Rich, Karl M. (1) Mais... Palavra-chave Research Methods/ Statistical Methods (2) Research and Development/Tech Change/Emerging Technologies (2) Agricultural and Food Policy (1) Agricultural and trade policy reforms (1) Crop Production/Industries (1) Demand and Price Analysis (1) Distorted incentives (1) Environmental Economics and Policy (1) Ethiopia (1) F13 (1) F14 (1) Food Security and Poverty (1) International Development (1) International Relations/Trade (1) National agricultural development (1) O31 (1) O33 (1) Persistent poverty (1) Q12 (1) Q13 (1) Mais... Tipo do documento Conference Paper or Presentation (4) Journal Article (1) Working or Discussion Paper (1) Ano 2009 (1) 2007 (1) 2004 (1) 2001 (1) 2000 (1) 1999 (1) Mais... País United States (6) Idioma Inglês (6)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 6 Primeira ... 1 ... Última A SPATIAL MODEL OF ANIMAL DISEASE CONTROL IN LIVESTOCK: EMPIRICAL ANALYSIS OF FOOT AND MOUTH DISEASE IN THE SOUTHERN CONE AgEcon Rich, Karl M.; Winter-Nelson, Alex. This paper presents a multi-market model of animal disease control that extends the current literature by accounting for spatial and inter-temporal relations in both epidemiological and economic variables. The model is applied to Foot and Mouth Disease control in Argentina, Uruguay and Paraguay, but it is broadly generalizable. Tipo: Conference Paper or Presentation Palavras-chave: Research Methods/ Statistical Methods. Ano: 2004 URL: http://purl.umn.edu/20015 INVESTMENT IN SITE SPECIFIC CROP MANAGEMENT UNDER UNCERTAINTY AgEcon Isik, Murat; Khanna, Madhu; Winter-Nelson, Alex. This paper examines the impact of price uncertainty on farmers' adoption decision in site specific crop management using an option value model. It shows that price uncertainty could lead farmers to delay the investment 3 to 25 years as opposed to the net present value rule. Immediate investment is only worthwhile on high soil fertility and soil quality fields with high variability. Tipo: Conference Paper or Presentation Palavras-chave: Crop Production/Industries; Risk and Uncertainty. Ano: 1999 URL: http://purl.umn.edu/21684 Poverty status and the impact of social networks on smallholder technology adoption in rural Ethiopia AgEcon Liverpool-Tasie, Lenis Saweda O.; Winter-Nelson, Alex. Despite recent traces of economic growth, Ethiopia remains one of the poorest countries in the world. Though about 80% of its population is engaged in agriculture, agricultural productivity remains low and extremely vulnerable to climatic conditions. The adoption and use of modern technologies is generally accepted as a potential vehicle out of poverty for many but adoption rates in the country remain low with the nature of the adoption process largely unstudied (Spielman et al, 2007). This paper studies the impact of social networks in the technology adoption process in rural Ethiopia. In particular it tests for the presence of social learning effects. In addition to geographic networks, it considers the role played by other networks with more... Tipo: Conference Paper or Presentation Palavras-chave: Social learning; Persistent poverty; Technology adoption; Ethiopia; Food Security and Poverty; International Development; Research and Development/Tech Change/Emerging Technologies; O31; O33; Q12; Q13. Ano: 2009 URL: http://purl.umn.edu/49357 SEQUENTIAL INVESTMENT IN SITE-SPECIFIC CROP MANAGEMENT UNDER OUTPUT PRICE UNCERTAINTY: IMPLICATIONS FOR NITROGEN POLLUTION CONTROL AgEcon Isik, Murat; Khanna, Madhu; Winter-Nelson, Alex. This paper develops an option value model to examine the extent to which output price uncertainty creates incentives to adopt two interrelated components of site-specific technologies sequentially. It analyzes how the impact of uncertainty on the sequential adoption decision differs across heterogeneous soil conditions, and examines the implications of adoption for nitrogen pollution generation and for the design of a cost-share subsidy policy. Tipo: Conference Paper or Presentation Palavras-chave: Environmental Economics and Policy; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods. Ano: 2000 URL: http://purl.umn.edu/21875 Distortions to Agricultural Incentives in Kenya AgEcon Winter-Nelson, Alex; Argwings-Kodhek, Gem. - Tipo: Working or Discussion Paper Palavras-chave: Distorted incentives; Agricultural and trade policy reforms; National agricultural development; Agricultural and Food Policy; International Relations/Trade; F13; F14; Q17; Q18. Ano: 2007 URL: http://purl.umn.edu/48521 SEQUENTIAL INVESTMENT IN SITE-SPECIFIC CROP MANAGEMENT UNDER OUTPUT PRICE UNCERTAINTY AgEcon Isik, Murat; Khanna, Madhu; Winter-Nelson, Alex. An option-value model is developed to analyze the impacts of output price uncertainty, high sunk costs of adoption, and site-specific conditions on the optimal timing of adoption of two interrelated site-specific technologies, soil testing and variable rate technology (VRT). The model incorporates the potential for adopting these two technologies jointly or sequentially. The implications of the pattern of adoption for nitrogen pollution and for the design of a cost-share subsidy policy to accelerate the adoption of these technologies to reduce nitrogen pollution are also analyzed. Ignoring the potential for sequential adoption would tend to underpredict the adoption so soil testing and overpredict the adoption of VRT. Cost-share subsidies to induce... Tipo: Journal Article Palavras-chave: Demand and Price Analysis. Ano: 2001 URL: http://purl.umn.edu/31161 Registros recuperados: 6 Primeira ... 1 ... Última

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