The supply of water for irrigation is subject to climatic and policy uncertainty. The object of the present paper is to show how the linear and non-linear programming models commonly used in modelling problems such as those arising in the Murray–Darling Basin may be adapted to incorporate a...

Questions relating to the allocation and management of risk have played a central role in the development of the National Water Initiative, particularly as it has applied to the Murray- Darling Basin. The central issues of efficiency and equity in allocations are best understood by considering...

Threats to dugong survival include direct mortality from boat strikes, drowning in nets and loss of habitat. Dugong sanctuaries were introduced in 1998 to protect declining dugong numbers by recognising important seagrass habitat areas. Nonpoint source pollutants such as dissolved nutrients,...

The Murray-Darling Basin comprises over 1 million km2; it lies within four states and one territory; and over 12, 800 GL of irrigation water is used to produce over 40% of the nation's gross value of agricultural production. This production is used by a diverse collection of some-times mutually...

The supply of water for irrigation is subject to climatic and policy uncertainty. The object of the present paper is to show how the linear and non-linear programming models commonly used in modelling problems such as those arising in the Murray–Darling Basin may be adapted to incorporate a...

People are part of a complex natural system and have the ability to actively interfere with their environment. Collective decisions made by governments represent social rules that limit the extent of people's interference with the environment that support them. Environmental decisions made by...

The relative merits of different systems of property rights to allocate water amongdifferent extractive uses are evaluated for the case where variability of supply isimportant. Three systems of property rights are considered. In the first, variablesupply is dealt with through the use of water...

The terms "grandfather clause" and "grandfathering" describe elements of a policy programme in which existing participants in an activity are protected from the impact of regulations, restrictions or charges applied to new entrants. In this paper, the role of grandfathering in the design of a...

In the past year, climate change has moved from political controversy to political consensus; at least, in relation for price-based policies the need to limit emissions. Uncertainties remain but with both major parties proposing to develop an emissions trading regime, it is timely to highlight...

In this paper we consider the problem of accommodating indigenous cultural heritage values in resource assessment and valuation. We suggest a need for price-based approaches to valuation to be replaced by or complemented with quantitative constraints, reflecting the requirement that rights...