Like the human immune system, a biosecurity system is a constellation of responses to external attacks comprising of many facets, a number of which can change to optimize the response to these unwanted intrusions. When either system hits the wrong target, or is inhibited or crippled somehow, the...

The coconut industry of North Sulawesi is dominated by a small number of products which are primarily exported from the province. Accordingly, demand for these products is generally very elastic. Conversely, the supply of coconuts is highly inelastic, especially in the short to medium-term....

In the past decade, market based instruments (MBIs) have become more frequently applied for natural resource and environmental management purposes. MBIs comprise a range of instruments used to provide economic incentives/disincentives (e.g. by altering market prices, setting a cap or altering...

Multiple criteria analysis (MCA) has been widely applied within the field of natural resource management since the 1970s. During this period MCA has undergone considerable methodological advancement with numerous methods for capturing decision maker preferences, ranking or scoring decision...

We present a computational model of fishing fleet dynamics for the Queensland coral reef line fishery. The model runs in a two dimensional space with agents moving between port and the collection of available reefs. The model of rationality is based on the haystack models of game theory, such...

Water is increasingly being treated as a tradable commodity. This paper describes our efforts to include water accounts in a multi-regional CGE model. In order to understand the conditions under which water trade might occur, we need to add a number of features to the model and scenarios. These...

Environmental conservation is intimately tied to both economic development and sustainable management of natural resources. Convergence and complementarity of environmental and developmental functions of forest management and their sustainable utilisation is a challenge for both developing and...

Australian governments have agreed to develop and implement policies to promote more efficient use of water resources and improved water quality. Policy objectives may include incentives for investment in efficient irrigation technologies. However, the presence of large, sunk investment and the...

Social costs and externalities associated with herbicide resistance have not generally been considered by economists. The economics of managing herbicide resistance in weeds has focused on cost-effective responses by growers to the development of resistance at the individual farm and field...

Avian Influenza caused losses to poultry producers in East Java in 2003 and 2004. Two surveys of poultry producers in affected districts were conducted in September 2005. One was of 125 broiler producers and the other of 125 egg producers. Based on results from these surveys the relationship...