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| Registros recuperados: 98 | |
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| Lence, Sergio H.. |
| The present study sets up a thought experiment calibrated to represent risks of a high-risk production activity (farming), and investigating whether the structure of risk aversion (i.e., the changes in absolute or relative risk aversion associated with changes in wealth) can be estimated with reasonable precision. Findings strongly suggest that typical production data are unlikely to allow identification of the structure of risk aversion. A flexible utility parameterization is found to worsen technology parameter estimates. Findings also indicate that even under a restricted utility specification, the quality of utility parameters estimated from small samples is very poor. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Expected utility; Risk preferences; Production analysis; Risk attitudes.; Risk and Uncertainty; C13; D24; D81; Q12.. |
| Ano: 2007 |
URL: http://purl.umn.edu/9980 |
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| Balcombe, Kelvin George; Davidova, Sophia; Latruffe, Laure. |
| This paper employs bootstrapping to correct for bias and to construct confidence intervals for Malmquist TFP indices derived with DEA. It uses these results to investigate the productivity change in Polish agriculture during a crucial period of the country's transition to a market economy, 1996-2000, when Poland was preparing for accession to the European Union. The bias corrected estimates show regress in productivity at an annual rate of 4 percent. The confidence intervals suggest that between two-thirds and four-fifths of the sample farms (250) in different years might have experienced no change in productivity. The cluster analysis based on confidence bounds reveals three paths of productivity change. Farms which recorded an increase in productivity at... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Malmquist indices; Bootstrapping; Poland; Farms; Productivity change; Productivity Analysis; D24; Q12; C6. |
| Ano: 2005 |
URL: http://purl.umn.edu/24572 |
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| Bignebat, Celine; Koc, A. Ali; Lemeilleur, Sylvaine. |
| A wide range of the empirical studies shows to what extend the rise of supermarkets in developing countries deeply transform domestic marketing channels. In particular, the exclusion of small producers from the so-called dynamic marketing channels (that is remunerative ones) is at stake. Based on original data collected in Turkey in 2007 at the producer and the wholesale market levels, we show that the intermediaries are decisive in order to understand the impact of downstream restructuring (supermarkets) on upstream decisions (producers). The results show first that producers are not aware of the final buyer of their produce, as intermediaries hinder the visibility of the marketing channel, their choice is restricted to that of the first intermediary.... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Supermarkets; Small farmers; Fresh fruit and vegetables; Turkey; Agribusiness; Production Economics; Q13; L14; D24. |
| Ano: 2009 |
URL: http://purl.umn.edu/52856 |
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| Tumusiime, Emmanuel; Brorsen, B. Wade; Mosali, Jagadeesh; Johnson, Jim; Locke, James; Biermacher, Jon T.. |
| The parameters of yield response functions can vary by year. Past studies usually assume yield functions are nstochastic ‘‘limited’’ stochastic. In this study, we estimate rye– ryegrass yield functions in which all parameters are random. The three functional forms considered are the linear response plateau, the quadratic, and the Spillman-Mitscherlich. Nonstochastic yield models are rejected in favor of stochastic parameter models. Quadratic functional forms fit the data poorly. Optimal nitrogen application recommendations are calculated for the linear response plateau and Spillman-Mitscherlich. The stochastic models lead to smaller recommended levels of nitrogen, but the economic benefits of using fully stochastic crop yield functions are small because... |
| Tipo: Journal Article |
Palavras-chave: Cereal rye–ryegrass; Monte Carlo; Nitrogen; Random parameters; Stochastic plateau; Production Economics; Q10; C12; D24. |
| Ano: 2011 |
URL: http://purl.umn.edu/117949 |
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| Perdomo, Jorge-Andres; Hueth, Darrell L.. |
| Este estudio estimó la forma funcional de producción cafetera en Colombia mediante fronteras estocásticas (FEP). Con esto, se analizó la importancia de los principales insumos empleados en la producción de café (cantidad de hectáreas cultivadas, mano de obra utilizada, maquinaria requerida y cantidad de fertilizantes aplicados), que afectan la productividad. Igualmente, se determinó la existencia de economías a escala en productores pequeños, medianos, grandes y sector general cafetero; ubicados en Caldas, Quindío y Risaralda. Finalmente, fue evaluada la eficiencia técnica (ET) en la producción. Entre los principales resultados, se destaca que la función de producción cafetera tiene una forma funcional Translog minflex Laurent para pequeños, medianos,... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Función de producción cafetera; Pequeños caficultores; Medianos caficultores; Grandes caficultores y sector general cafetero; Frontera estocástica de producción; Eficiencia técnica; Análisis de economías a escala.; Crop Production/Industries; Q12; D24; C01; C29. |
| Ano: 2010 |
URL: http://purl.umn.edu/100873 |
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| Registros recuperados: 98 | |
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