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| Registros recuperados: 2.166 | |
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| Griffiths, William E.. |
| A Bayesian approach is used to provide a framework for optimal input allocation for a stochastic production function with uncertain parameters. The chosen production function is a single-input version of a function which can exhibit positive or negative marginal risk. The sensitivity of optimal input allocation to the degree of risk aversion, the marginal risk parameter, and the assumed level of uncertainty about the parameters is examined. Using an example problem it is shown that parameter uncertainty will not always lead to a lower input level when a producer is risk averse. Some problems with the production function specification are uncovered, as is the incompatibility of some expected utility and stochastic assumptions. |
| Tipo: Journal Article |
Palavras-chave: Research Methods/ Statistical Methods; Risk and Uncertainty. |
| Ano: 1986 |
URL: http://purl.umn.edu/22898 |
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| Randall, Alan; Chen, Ding-Rong. |
| Because original high-quality non-market valuation studies can be expensive, perhaps prohibitively so, benefits transfer (BT) approaches are often used for valuing, e.g., the outputs of multifunctional agriculture. Here we focus on the use of BT functions, a preferred method, and address an under-appreciated problem – variable selection uncertainty – and demonstrate a conceptually superior method of resolving it. We show that the standard method of value-function BT, using the full estimated model, may generate BT values that are too sensitive to insignificant variables, whereas models reduced by backward elimination of insignificant variables pay no attention to insignificant variables that may in fact have some influence on values. Rather than searching... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Research Methods/ Statistical Methods. |
| Ano: 2011 |
URL: http://purl.umn.edu/114788 |
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| Philippidis, George; Hubbard, Lionel J.; Renwick, Alan W.. |
| In this study, we employ the Harbinson proposal and July Framework to compare a ‘likely’ Doha scenario with an ‘inclusive’ baseline. The key aim is to assess the impacts across EU member states. More specifically, we (i) employ the latest version 6 of the GTAP database, (ii) explicitly model CAP mechanisms (e.g., quotas, decoupled payments, set-aside, CAP budget etc.) to more accurately assess the asymmetric trade led welfare effects on selected EU member states, and (iii) introduce binding overhangs into domestic support, export subsidies and more importantly market access commitments. Whilst the EU regions benefit from the multilateral reform proposals, the gains are weakened considerably by the tariff binding overhangs, where the EU25 only gain ten per... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Research Methods/ Statistical Methods. |
| Ano: 2006 |
URL: http://purl.umn.edu/45992 |
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| Mazur, Kasia; Bennett, Jeffrey W.. |
| The survey was designed to estimate environmental values suitable for integration into MOSAIC, a bio-economic model for catchment and farm level planning. Local residents, as well as distant rural and distant urban communities, were surveyed in three NSW catchments (Lachlan, Namoi and Hawkesbury-Nepean) using choice modelling (CM). The survey aimed to find out respondents’ attitudes about, and preferences for, potential natural resource management (NRM) improvements. In total, 3,997 responses were collected from seven different locations in NSW. Fourteen split samples were established to allow for testing of incentive compatibility in CM, the impact of respondent location on values held, and scale effects. This research report describes the development... |
| Tipo: Report |
Palavras-chave: Nonmarket valuation; Choice modelling; Survey; Questionnaire design; Community/Rural/Urban Development; Environmental Economics and Policy; Research Methods/ Statistical Methods. |
| Ano: 2009 |
URL: http://purl.umn.edu/94813 |
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| Driscoll, Paul J.; McGuirk, Anya M.. |
| Quadratic flexible forms, such as the translog and generalized Leontief, are separability inflexible. That is, separability restrictions render them inflexible with regard to separable structures. A class functional forms is proposed that is flexible with regard to general production structures and remains flexible regarding weakly separable structures when separability restrictions are imposed, thus permitting tests of the separability hypothesis. Additionally, the restricted forms are parsimonious; that is they contain the minimum number of parameters with which flexibility can be achieved. |
| Tipo: Journal Article |
Palavras-chave: Research Methods/ Statistical Methods. |
| Ano: 1992 |
URL: http://purl.umn.edu/30947 |
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| Simmons, Phil; Wallace, Lee. |
| Klieve and MacAulay (1993) (KM) analyse bargaining between the Australian and Japanese Southern Bluefin Tuna (SBT) industries using game theory. The KM model is a Nash equilibrium with symmetrical information, threat functions and a set of biological constraints. When we attempted to include the New Zealand SBT industry as a player in the KM model, we discovered important shortcomings in it. In this comment, we outline three major shortcomings in the KM model and propose an alternative model of a Nash equilibrium for the SBT industry. |
| Tipo: Journal Article |
Palavras-chave: Research Methods/ Statistical Methods. |
| Ano: 1995 |
URL: http://purl.umn.edu/22675 |
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| Registros recuperados: 2.166 | |
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