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| Registros recuperados: 11 | |
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| Alghalith, Moawia. |
| This paper extends the existing estimation methods to allow estimation under simultaneous price and output uncertainty. In contrast with the previous literature, our approach is applicable to the direct and indirect utility functions and does not require specification and estimation of the production function. We derive estimating equations for the two most common forms of output risk (additive and multiplicative risks) and empirically determine which form is appropriate. Moreover, our estimation method can be utilized by future empirical studies in several ways. First, our method can be extended to include multiple sources of uncertainty. Second, it is applicable to other specifications of output uncertainty. Third, it can be used to conduct hypothesis... |
| Tipo: Journal Article |
Palavras-chave: Estimating equations; Output uncertainty; Price uncertainty; Utility; D8; D2. |
| Ano: 2005 |
URL: http://purl.umn.edu/37108 |
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| Silveira, Rodrigo Lanna Franco da; Barros, Geraldo Sant'Ana de Camargo. |
| This study investigates the composition of maximum expected utility portfolio, considering stocks, bonds, gold, dollar and agricultural futures contract, between August of 1994 and December of 2007. From the optimal combinations of risk-return (calculated by Markowitz algorithm) and the use of a quadratic utility function (with different levels of risk aversion), were obtained portfolios that maximizes expected utility. The commodity futures were not present in the maximum expected utility portfolios for the complete period, 1994-2000. However, with division of sample in two and three periods, the commodity futures were included in these portfolios during the 2000s. Furthermore, in general, with the risk aversion increase, the participation of these papers... |
| Tipo: Journal Article |
Palavras-chave: Portfolio; Agricultural futures contract; Utility; Risk and Uncertainty. |
| Ano: 2009 |
URL: http://purl.umn.edu/56854 |
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| Hernandez Martinez, Juvencio; Rebollar Rebollar, Samuel; Gonzalez Razo, Felipe de Jesus; Guzman Soria, Eugenio; Albarran Portillo, Benito; Garcia Martinez, Anastacio. |
| In Mexico beef cattle production under double purpose systems is the main economic activity in rural areas. This activity has been developed for decades in the south of México State, without any technical assistance. The productive chain of beef production has a weak links between the different bonds (producers, slaughter houses, traders etc.), which in general have been working independently. Organization between the bonds of the chain will increase the competitiveness of the system. Results of the study indicate that beef production chain in the south of Mexico State is a competitive and profitable, due to its low investment cost, but mainly because of its great flexibility, even though optimum productivity is not achieved. During 2008, sales utilities... |
| Tipo: Journal Article |
Palavras-chave: Productive chain; Beef production; Utility; Competitiveness.; Agribusiness. |
| Ano: 2011 |
URL: http://purl.umn.edu/113950 |
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| Singh, Riddhi; Department of Civil Engineering, Indian Institute of Technology Hyderabad; Earth and Environmental Systems Institute, Pennsylvania State University; riddhi@iith.ac.in; Reed, Patrick M.; School of Civil and Environmental Engineering, Cornell University; patrick.reed@cornell.edu; Keller, Klaus; Department of Geosciences, Pennsylvania State University; Earth and Environmental Systems Institute, Pennsylvania State University; Department of Engineering and Public Policy, Carnegie Mellon University; klaus@psu.edu. |
| Managing ecosystems with deeply uncertain threshold responses and multiple decision makers poses nontrivial decision analytical challenges. The problem is imbued with deep uncertainties because decision makers do not know or cannot converge on a single probability density function for each key parameter, a perfect model structure, or a single adequate objective. The existing literature on managing multistate ecosystems has generally followed a normative decision-making approach based on expected utility maximization (MEU). This approach has simple and intuitive axiomatic foundations, but faces at least two limitations. First, a prespecified utility function is often unable to capture the preferences of diverse decision makers. Second, decision... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: A posteriori decision making; Deep uncertainty; Lake eutrophication; Many objective; Robustness analysis; Utility. |
| Ano: 2015 |
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| King, Elizabeth; Odum School of Ecology, University of Georgia; Warnell School of Forestry and Natural Resources, University of Georgia; egking@uga.edu; Cavender-Bares, Jeannine; Department of Ecology, Evolution and Behavior, University of Minnesota; Institute on Environment, University of Minnesota; cavender@umn.edu; Polasky, Stephen; Department of Applied Economics, University of Minnesota; Department of Ecology, Evolution and Behavior, University of Minnesota; Institute on Environment, University of Minnesota; polasky@umn.edu. |
| In efforts to increase human well-being while maintaining the natural systems and processes upon which we depend, navigating the trade-offs that can arise between different ecosystem services is a profound challenge. We evaluated a recently developed simple analytic framework for assessing ecosystem service trade-offs, which characterizes such trade-offs in terms of their underlying biophysical constraints as well as divergences in stakeholders’ values for the services in question. Through a workshop and subsequent discussions, we identified four different types of challenging situations under which the framework allows important insights to clarify the nature of stakeholder conflicts, obstacles to promoting more sustainable outcomes, and... |
| Tipo: Peer-Reviewed Insight |
Palavras-chave: Biophysical constraint; Conflict; Ecosystem service; Human values; Participatory tool; Production possibility frontier; Sustainability; Trade-off; Utility. |
| Ano: 2015 |
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| Registros recuperados: 11 | |
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