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| Registros recuperados: 10 | |
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| Kirby, Mac; Connor, Jeffery D.; Bark, Rosalind H.; Qureshi, Muhammad Ejaz; Keyworth, Scott W.. |
| The recent drought saw the lowest inflows on record in the Murray-Darling Basin in 2006. Water use by irrigation in 2007-8 and 2008-9 was about one third that of pre-drought levels. Understanding how irrigation adapted to less water is key both to provide information to help plan for the future and data for model calibration. Complicating this objective was the concurrent international food price crisis of 2008 and an increase in water trading in the basin. This presents a challenge in unpacking the effects of commodity price changes, input substitution, productivity gains and water trading from the effect of reduced water availability. In this paper we seek Our objective is to unpack the various effects. We used publicly available price and production... |
| Tipo: Presentation |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2012 |
URL: http://purl.umn.edu/124490 |
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| Qureshi, Muhammad Ejaz; Connor, Jeffery D.; Kirby, Mac; Mainuddin, Mohammed. |
| This article is an economic analysis of reallocating River Murray Basin water from agriculture to the environment with and without the possibility of interregional water trade. Acquiring environmental flows as an equal percentage of water allocations from all irrigation regions in the Basin is estimated to reduce returns to irrigation. When the same volume of water is taken from selected low-value regions only, the net revenue reduction is less. In all scenarios considered, net revenue gains from freeing trade are estimated to outweigh the negative revenue effects of reallocating water for environmental flows. The model accounts for how stochastic weather affects market water demand, supply and requirements for environmental flows. Net irrigation revenue... |
| Tipo: Journal Article |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2007 |
URL: http://purl.umn.edu/118333 |
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| Connor, Jeffery D.; Ward, John R.; Bryan, Brett. |
| Until recently public efforts to encourage conservation on private land in many countries has primarily been through uniform payment policies. Auctions are increasingly used as a payment mechanism to acquire public benefits such as conservation actions that provide environmental improvements on private land (e.g. the US Conservation Reserve Program (CRP). The economic rationale for use of auctions is that they create decentralised incentives to offer bids at close to the true landholder opportunity costs, even when the implementing agency holds little information about these opportunity costs. This paper assesses the cost of a case study auction relative to four payment policies that use varying levels of information strategically to reduce rent payment... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Land Economics/Use. |
| Ano: 2007 |
URL: http://purl.umn.edu/9360 |
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| Kirby, Mac; Mainuddin, Mohammed; Gao, Lei; Connor, Jeffery D.; Ahmad, Mobin-ud-Din. |
| We aim to model the impact of variability in and changes to water availability in the Murray-Darling Basin on flows available to the environment and irrigation, and impact on the value of irrigated agricultural production. Our objective is to understand the opportunities for changed management of the basin, how they are constrained by climate change and other factors, and how they might affect the returns to irrigation and flows for the environment, so that we may provide information to help plan for the future. In this paper we describe the model: in other papers in this conference we describe analyses of water availability and use in the basin based on this model. The hydrology component of the model is based on a simple, monthly water balance stocks and... |
| Tipo: Presentation |
Palavras-chave: Crop Production/Industries. |
| Ano: 2012 |
URL: http://purl.umn.edu/124487 |
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| Connor, Jeffery D.; Ward, John R.; Bryan, Brett. |
| This article evaluates the cost-effectiveness of the Catchment Care Australian conservation auction. It provides evidence of auction cost effectiveness, and estimates cost savings from two discrete components: (i) the opportunity cost revelation incentive provided by the auction mechanism, and (ii) the improved environmental targeting capacity that results from development of a scientifically based environmental benefits assessment capacity. Results show that there are potentially very large returns associated with the latter component that have been overlooked in the literature. Additionally, transaction costs involved with administering the case study conservation auction and the prior non-auction payment policy are compared. We find that the... |
| Tipo: Article |
Palavras-chave: Auctions; Biodiversity; Cost effectiveness; Environmental economics; Environmental policy; Land Economics/Use. |
| Ano: 2008 |
URL: http://purl.umn.edu/118545 |
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| Connor, Jeffery D.. |
| This paper reports on complex adaptive system (CAS) simulation of the River Murray Basin in Australia to compare capacity of institutional options to maintain functioning of key river system within a "bandwidth" that limits irreversible system state changes and highly adverse consequences. The modelling framework characterise diverse irrigation agents who profit from water diversion and cause external salinity impacts, water and salt process that form the link between irrigator actions and agricultural profits and external costs, and a river manager who sets institutional rules. Emphasis is on the CAS nature of the system and on institutional rules to accommodate choosing actions differently based on con dition of the system has been referred to as state... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2006 |
URL: http://purl.umn.edu/25308 |
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| Connor, Jeffery D.; Kirby, Mac; Schwabe, Kurt A.; Lukasiewicz, Anna; Kaczan, David. |
| This article evaluates irrigated agriculture sector response and resultant economic impacts of climate change for a part of the Murray Darling Basin in Australia. A water balance model is used to predict reduced basin inflows for mild, moderate and severe climate change scenarios involving 10, 20, 40 Celcius warming, and predict 13%, 38% and 63% reduced inflows. Impact on irrigated agricultural production and profitability are estimated with a mathematical programming model using a two-stage approach that simultaneously estimates short and long-run adjustments. The model accounts for a range of adaptive responses including: deficit irrigation, temporarily fallowing some areas, and permanently reducing irrigated area and changing the mix of crops. The... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Environmental Economics and Policy; Land Economics/Use. |
| Ano: 2008 |
URL: http://purl.umn.edu/5974 |
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| Registros recuperados: 10 | |
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