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| Abougamos, Hoda; White, Benedict; Sadler, Rohan. |
| The export of grain from Western Australia depends upon a grain supply network that takes grain from farm to port through Cooperative Bulk Handling receival and storage sites. The ability of the network to deliver pest free grain to the port and onto ship depends upon the quality of grain delivered by farmers and the efficacy of phosphine based fumigation in controlling stored grain pests. Phosphine fumigation is critical to the grain supply network because it is the cheapest effective fumigant. In addition, it is also residue free. Unfortunately, over time, common stored-grain pests have evolved to develop resistance to phosphine and there is a risk that phosphine will become less effective and may need to be replaced with more expensive alternative... |
| Tipo: Presentation |
Palavras-chave: Principal-agent model; Supply contracts; Moral hazard; Stored grain; Biosecurity; Crop Production/Industries. |
| Ano: 2012 |
URL: http://purl.umn.edu/124216 |
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| Pandit, Ram; Polyakov, Maksym; Sadler, Rohan. |
| This paper presents a spatially explicit analysis of the contribution of urban trees and parks to residential property values. We estimated the effects of structural, neighbourhood, and environmental variables, including tree cover, on sale price of single-family homes in Perth using a generalized spatial two-stage least-squares model. The spatial model results indicate that, among other structural and neighbourhood variables, the proportion of tree cover on street verges (public space) and the extent and proximity of neighbourhood parks attract significant price premiums in the Perth housing market. However, we failed to find any evidence of impact of the tree cover on property (private space) on its sale price. Further, we find that the parameter... |
| Tipo: Presentation |
Palavras-chave: Land Economics/Use; Resource /Energy Economics and Policy. |
| Ano: 2012 |
URL: http://purl.umn.edu/124357 |
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