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| Registros recuperados: 77 | |
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| Onumah, Edward E.; Acquah, H. de-Graft. |
| This paper considers the stochastic production frontier approach to analyse the technical efficiency and its determinants of fish farms in Ghana using a cross-section data of 150 farms. It considers the explicit effects of family and hired labour on production by setting the log-value of the zero-observation of these two sources of labour to zero with dummy variables. Results demonstrate that expected elasticities of mean output with respect to all input variables are positive and significant. Findings also show that family and hired labour used for fish farming in Ghana may be equally productive. Fish farms in Ghana are revealed to be characterised by technology with increasing return to scale. The combined effects of operational and farm specific factors... |
| Tipo: Journal Article |
Palavras-chave: Technical efficiency; Stochastic frontier; Elasticity; Return to scale; Farm Management; Productivity Analysis; GA; IN. |
| Ano: 2011 |
URL: http://purl.umn.edu/109738 |
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| Sookhtanlo, Mojtaba; Sarani, Valiollah. |
| The main purpose of this study was to analyze the Factors Affecting on risk management in wheat production among farmers of Razavieh region (Khorasan-E-Razavi province, Iran). Statistical population of the study was 1520 farmers that they had water cultivation. By using of stratified proportional random sampling 156 respondents were selected from 8 villages. For the calculation of the risk-aversion coefficient degree among farmers, the Safety First Rule model was used. The findings revealed that the dominant respondents (65%) were risk-averse. The results of exploratory factorial analysis showed that five factors determined about 74.267 % from total variance for wheat farmers' risk management that consist of: economy & marketing management factor,... |
| Tipo: Article |
Palavras-chave: Wheat farmers; Risk-aversion; Risk management; Drought; Agricultural extension; Farm Management; Risk and Uncertainty; GA; IN. |
| Ano: 2011 |
URL: http://purl.umn.edu/120238 |
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| Maitah, Mansoor; der Ali, A.. |
| The subject of the relationship between state budget and trade balance is important as economic subject, not only at the level of developing countries, but also at of advanced ones, too. Such importance emerged clearly when 1980s witnessed in United States of America a deficit in both state budget and trade balance, which was called at that time as the twin or dual deficit. We can say that the analysis of relationship between state budget and trade balance states the extent of mutual effect between financial and trade policies of any economy, namely; any change in the outcome of either one may affect the other in the same degree. To put in other words, the instruments of financial policy represented by total incomes and total expenditures can affect the... |
| Tipo: Journal Article |
Palavras-chave: State budget; Trade balance; Libya; Trade policy; Fiscal policy; Financial Economics; International Relations/Trade; GA; IN. |
| Ano: 2010 |
URL: http://purl.umn.edu/99221 |
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| Voltr, Vaclav. |
| Assessment of land depends on the production function of soil and additional connections given by environmental requirements, by the evaluation of public goods or by the requirements for formation a fair tax policy and even by the interests of landowners. Analysis of coherences during the soil appraisal shows a relatively strong dependence on the development of year-by-year yields and cost including subsidy policy, which is strongly reflected in the grasslands. Development of subsidies does not basically influence a long- term return and costs ratio for the production on arable land. The requirements for formation of prices are given due to the need for stability of the mutual relations between the quality of soil and climatic conditions, which manifests... |
| Tipo: Article |
Palavras-chave: Soil evaluation; Land value; Production functions; Land Economics/Use; Production Economics; GA; IN. |
| Ano: 2011 |
URL: http://purl.umn.edu/120239 |
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| Tarasov, Arthur. |
| Modern methods of quantitative risk analysis, specifically value-at-risk and expected shortfall approach, provide comprehensive and coherent risk evaluation throughout entire distribution of outcomes and can take agricultural business from the realm of uncertainty to specific, quantified risks. Monte Carlo simulation with autocorrelation of standard deviation shows the best results in risk modeling and is used for this research. The analysis showed that production risk is systemic within climatic regions of Ukraine with coefficients of correlation ranging from 0.25 to 0.85. Yield correlation among crops in several oblasts is low to negative, creating opportunities for diversification. However, positive price-yield correlation is dominant for agricultural... |
| Tipo: Article |
Palavras-chave: Production risk; Price risk; Value-at-risk in agriculture; Expected shortfall; Production Economics; Risk and Uncertainty; GA; IN. |
| Ano: 2011 |
URL: http://purl.umn.edu/120240 |
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| Houskova Berankova, Martina; Houska, Milan. |
| It is very important to work with data, information and knowledge correctly, when a decision model is used as a support for managerial decision-making. Unfortunately, these terms are understood differently in various branches; particularly, the definitions of knowledge are very different. It causes problems in praxis; it is not clear, in which case data processing, information or knowledge/expert systems are appropriate to use. In this paper we introduce modern approaches to indentifying these terms. The objective of the paper is to identify data, information and knowledge in decision-making process, particularly in multiple-criteria decision-making model, to help users of such models to better understand it. To reach this objective, we need to provide... |
| Tipo: Journal Article |
Palavras-chave: Data; Information; Knowledge; Multiple-Criteria Decision-Making Model; Grain Dryers; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods; GA; IN. |
| Ano: 2011 |
URL: http://purl.umn.edu/109740 |
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| Registros recuperados: 77 | |
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