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| Registros recuperados: 10 | |
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| Page, Sharon; Hafi, Ahmed; Beare, Stephen. |
| Most urban centres across Australia are facing water shortages. In part, these water shortages are due to the variability of supply and demand caused by variable climatic conditions. Permanent supply augmentation to meet periodic water shortages can be costly. Water trade between rural and urban areas, through urban water options contracts, may be a less costly way to meet variability. Urban water options could be used to improve system reliability and may reduce costs by delaying investment and reducing the frequency and severity of water shortages. This paper investigates the potential to use urban water options contracts, and develops a methodology for evaluation. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2007 |
URL: http://purl.umn.edu/10398 |
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| Beare, Stephen; Bell, Rosalyn; Harrison, Scott. |
| Uncertainty has long been recognised as an important aspect of renewable resource assessment and management. Stochastic optimal control provides a framework in which to incorporate uncertainty, whether arising from fluctuations in the biological or economic environment or from lack of a precise understanding of inter-relationships within a system. However, overlaying complex and interdependent biological, physical and economic relationships with uncertainty often results in an optimal control problem which is analytically complex. In this paper, a parametric approximation to the control equation is combined with genetic search algorithms to solve the stochastic control problem. The parametric approximation to the solution of optimal control problems is... |
| Tipo: Presentation |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 1999 |
URL: http://purl.umn.edu/123763 |
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| Beare, Stephen; Meshios, Helen. |
| The extent to which wools with different fibre characteristics can be substituted in textile production and consumption holds implications for Australia's international and domestic marketing policies. An analysis of price-induced substitution between Australian wools of different fibre diameters was conducted. Fibre diameter was used to parameterise cross-price relationships in order to estimate a system of demand equations for wools by diameter class. The results indicate that direct substitution takes place within a very limited range of fibre diameters. The use of product characteristics to parameterise price relationships may be extended to other graded commodities. |
| Tipo: Journal Article |
Palavras-chave: Crop Production/Industries. |
| Ano: 1990 |
URL: http://purl.umn.edu/22499 |
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| Beare, Stephen; Chambers, Raymond. |
| Environmental intervention is often seen as being high risk and high return. Traditional scientific hypothesis testing provides limited guidance to policy makers unless there is a high level of certainty in the supporting scientific evidence. Traditional cost-benefit analysis under uncertainty has shortcomings when considering high-risk investment, largely due to the choice of how to discount uncertainty outcomes. A corollary is that traditional cost-benefit analysis does not place a value on increased certainty, an important outcome of successful scientific research. A fiducial costbenefit methodology is presented in this paper, which integrates hypothesis testing and traditional cost-benefit analysis. The fiducial approach is one way of objectively... |
| Tipo: Presentation |
Palavras-chave: Cost-benefit; Risk; Uncertainty; Cost-benefit; Fiducial inference; Research and Development/Tech Change/Emerging Technologies. |
| Ano: 2012 |
URL: http://purl.umn.edu/124232 |
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| Bell, Rosalyn; Beare, Stephen. |
| There is pressure in Australia for water management reform to ensure an efficient allocation of resources between productive uses and to provide adequate conservation of the environment. The establishment of water markets and trade has been seen as the primary mechanism for improving the efficiency of water use in the Southern Murray Darling Basin. However, with the existing trading arrangements, irrigators can only reallocate water within a season. Individuals do not hold property rights that allow them to manage the variability in water demand and supply between seasons. The objective of the study presented in this paper is to establish an order of magnitude for the benefits of property rights that allow for inter-seasonal arbitrage in water markets. A... |
| Tipo: Presentation |
Palavras-chave: Demand and Price Analysis; Resource /Energy Economics and Policy. |
| Ano: 1999 |
URL: http://purl.umn.edu/123765 |
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| Heaney, Anna; Dwyer, Gavan; Beare, Stephen; Peterson, Deborah C.; Pechey, Lili. |
| The joint conference paper, 'Third-party effects of water trading and potential policy responses' by Anna Heaney (ABARE), Gavan Dwyer (PC), Stephen Beare (ABARE), Deborah Peterson (PC) and Lili Pechey (ABARE), was presented to the American Agricultural Economics Association conference, Providence, Rhode Island, 25 - 27 July 2005. A key feature of water policy reform in Australia has been the separation of water access entitlements from land titles and the establishment of markets for water. However, the separation of water entitlements from land entitlement is not a sufficient condition to ensure that water markets are complete. In the absence of fully defined property rights, water markets will be incomplete and trade has the potential to create... |
| Tipo: Report |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2005 |
URL: http://purl.umn.edu/31907 |
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| Angel, C.; Beare, Stephen; Zwart, A.C.. |
| The physical characteristics of wool are important determinants of its spinning properties, yarn quality and end use. The degree to which wools from different countries of origin may be substituted has important implications for the domestic marketing policies of Australia and New Zealand. The hypothesis examined in this paper is that the differences in wool prices can be explained by differences in the physical characteristics of the wool and that objective measures of these characteristics allow for effective arbitrage between these markets. The alternative hypothesis is that premiums or discounts exist owing to country of origin. A hedonic price analysis was conducted on wool prices in Australia and New Zealand using a balanced sample of sale lot data... |
| Tipo: Journal Article |
Palavras-chave: Crop Production/Industries; Marketing. |
| Ano: 1990 |
URL: http://purl.umn.edu/22501 |
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| Heaney, Anna; Dwyer, Gavan; Beare, Stephen; Peterson, Deborah C.; Pechey, Lili. |
| A key feature of water policy reform in Australia has been the separation of water access entitlements from land titles and the establishment of markets for water. However, the separation of water entitlements from land failed to account for a number of characteristics that were implicit in the joint right. This has given rise to a number of third-party effects as water is traded in an incomplete market. This paper describes four third-party effects of water trade; reliability of supply, timeliness of delivery, storage and delivery charges, and water quality and examines policy responses to address these effects. The discussion draws on the concepts of exclusiveness and rivalry to determine the applicability of property rights and other solutions to the... |
| Tipo: Journal Article |
Palavras-chave: Property rights; Water trading; Third-party effects; Resource /Energy Economics and Policy. |
| Ano: 2006 |
URL: http://purl.umn.edu/116967 |
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| Heaney, Anna; Beare, Stephen; Bell, Rosalyn. |
| A modelling framework incorporating relationships between agricultural production and groundwater hydrology was developed to estimate the benefits of improved irrigation efficiency in the Riverland of South Australia. Increased irrigation efficiency can generate external benefits to downstream users through reduced discharge of saline groundwater. In the Riverland these benefits are large in comparison to the direct value of the irrigation water. However, the non‐exclusive and site‐specific nature of these benefits makes it difficult to fully internalise them through market instruments such as salinity credits. Achieving optimal irrigation efficiency is likely to require institutional arrangements that promote collective investment and public expenditure. |
| Tipo: Journal Article |
Palavras-chave: Land Economics/Use. |
| Ano: 2001 |
URL: http://purl.umn.edu/117573 |
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| Heaney, Anna; Beare, Stephen; Brennan, Donna C.. |
| The regulation of river systems to meet water demands for irrigation in the southern Murray Darling Basin has changed the timing and the volume of the natural pattern of flows. Australian governments have committed to restoring, in part, winter and spring flow regimes to preserve and enhance the riverine environment. These changes will involve trade-offs against the foregone returns to agriculture and between different environmental objectives. To better understand these trade-offs, environmental flow objectives are specified as a change in the inter-arrival time distributions of winter and spring flow events, ranging from brief flooding events to the inundation of flood plains and wetlands over several weeks. Expected costs, and hence the trade-offs,... |
| Tipo: Presentation |
Palavras-chave: Environmental Economics and Policy; Risk and Uncertainty. |
| Ano: 2012 |
URL: http://purl.umn.edu/124315 |
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| Registros recuperados: 10 | |
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