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Valuing Urban Wetlands of the Gnangara Mound: A Hedonic Property Price Approach in Western Australia AgEcon
Tapsuwan, Sorada; Ingram, Gordon; Brennan, Donna C..
Up to 60% of potable water supplied to Perth in Western Australia is extracted from the Gnangara mound. Many of the urban wetlands above the Mound are groundwater-dependent. Excessive groundwater extraction and climate change have resulted in a decline in water levels in the wetlands. This study estimates the value of urban wetlands in three local government districts in the Perth metropolitan region using the hedonic property price approach. Preliminary results found that proximity to wetlands influences the sales prices of properties. The marginal implicit price of reducing the distance to the nearest wetland by 1 metre, evaluated at the mean sales value, is AU$463. If there is more than one wetland within 1.5 kilometres of a property, the second wetland...
Tipo: Conference Paper or Presentation Palavras-chave: Groundwater; Housing development; Aquifer; Marginal implicit price; Land Economics/Use.
Ano: 2007 URL: http://purl.umn.edu/10418
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The welfare costs of urban outdoor water restrictions AgEcon
Brennan, Donna C.; Tapsuwan, Sorada; Ingram, Gordon.
Outdoor water restrictions are usually implemented as bans on a particular type of watering technology (sprinklers), which allow households to substitute for labour-intensive (hand-held) watering. This paper presents a household production model approach to analysing the impact of sprinkler restrictions on consumer welfare and their efficacy as a demand management tool. Central to our empirical analysis is an experimentally derived production function which describes the relationship between irrigation and lawn quality. We demonstrate that for a typical consumer complete sprinkler bans may be little more effective than milder restrictions policies, but are substantially more costly to the household.
Tipo: Journal Article Palavras-chave: Household model; Urban water demand; Urban water restrictions; Resource /Energy Economics and Policy.
Ano: 2007 URL: http://purl.umn.edu/118331
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Exit Timing Decisions under Land Speculation and Resource Scarcity in Agriculture AgEcon
Ranjan, Ram; Tapsuwan, Sorada.
This paper explores the concept of agricultural resilience in the context of climate change related water scarcity. Specifically, the impact of water scarcity on agricultural production is analyzed to derive the timing of exit decisions for farmers faced with the prospect of declining profitability in agriculture but increasing benefits from land rezoning in future. The prospects of land rezoning are modeled as a poison process which may or may not be influenced by farmer’s water abstraction decisions. Selling out of agriculture before land rezoning has an impatience cost as the farmer does not gain the maximum speculative rewards. The analysis highlights the role of such speculative rewards in making farmers resilient to declining profitability in...
Tipo: Conference Paper or Presentation Palavras-chave: Agricultural resilience; Exit timing; Water scarcity; Climate change; Environmental Economics and Policy; Farm Management; Land Economics/Use; Resource /Energy Economics and Policy.
Ano: 2008 URL: http://purl.umn.edu/5998
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