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| Fleming, Christopher M.; Alexander, Robert R.. |
| Ecologists frequently note the importance of modelling entire ecosystems rather than single species, but most bioeconomic models in the current literature focus on a single species. While the mathematical difficulty of multiple species may quickly become overwhelming, sometimes making the single species option necessary, it is important to recognise the significance of the single species assumption to the model results. In this paper, the authors address the economic significance of this assumption through the development of a multiple species model and demonstrate the importance of interrelationships and economic values to the survival of endangered species. |
| Tipo: Working or Discussion Paper |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2002 |
URL: http://purl.umn.edu/23693 |
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| Ambrey, Christopher L.; Fleming, Christopher M.. |
| The narrative of the twentieth century is dominated by three key trends: population growth, economic growth and urbanisation. Moreover, these trends are expected to continue well into the twenty-first century. Australia has not been immune to these trends. Australia’s population is projected to increase by 65% to over 35 million by 2049, and be accompanied by an average growth in per-capita Gross Domestic Product of 1.5% per annum. Much of this population and economic growth will be concentrated in an already highly urbanised environment. As a consequence, the natural environment in which the majority of Australians live is likely to undergo rapid change. It is useful therefore, to better understand our relationship with this environment. Using data from... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Resource /Energy Economics and Policy; C21; I31; R10. |
| Ano: 2011 |
URL: http://purl.umn.edu/100548 |
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| Fleming, Christopher M.; Cook, Averil. |
| Environmental economists have long used surveys to gather information about people's preferences. This is particularly true in the field of non-market valuation, where techniques such as contingent valuation, choice modelling and the travel cost method invariably employ some form of survey instrument. A recent innovation in survey methodology has been the advent of web-based surveys. While popular in many other disciplines, to date, very few non-market valuation studies have employed the Internet as a survey tool. A primary concern of non-market valuation practitioners is the potential sampling biases associated with web-based surveys and the effect this may have on valuation estimates. In this paper the results of two travel cost surveys, one conducted... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Web-surveys; Sample bias; Travel cost method; Research Methods/ Statistical Methods. |
| Ano: 2007 |
URL: http://purl.umn.edu/10358 |
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