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The farm level impacts of water sharing plans in the Namoi Valley: A stochastic dynamic programming analysis

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  • Aluwihare, Parakrama B.
  • Jones, Randall E.
  • Letcher, Rebecca A.

Abstract

In NSW the Water Management Act (2000) requires water to be specifically allocated for environmental purposes so as to improve river health. Water sharing plans have been developed that establish extractive and environmental shares to river flows. In unregulated river systems this has resulted in changed access rules to river flows for irrigation purposes, raising the prospect of opportunity costs being imposed on irrigators. An important consideration in the development of these plans is an assessment of socio-economic impacts of different water sharing options. This paper presents a bioeconomic modelling framework, based on stochastic dynamic programming linked to hydrological and biophysical models, to assess the farm level impacts of different water sharing plans in a sub-catchment of the Namoi Valley. The framework incorporates temporal farm adjustment decisions in response to changes in water rights and the impact of river flow and climatic variability in assessing the impact of different water sharing plans.

Suggested Citation

  • Aluwihare, Parakrama B. & Jones, Randall E. & Letcher, Rebecca A., 2005. "The farm level impacts of water sharing plans in the Namoi Valley: A stochastic dynamic programming analysis," 2005 Conference (49th), February 9-11, 2005, Coff's Harbour, Australia 137742, Australian Agricultural and Resource Economics Society.
    • Handle: RePEc:ags:aare05:137742
    DOI: 10.22004/ag.econ.137742
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    References listed on IDEAS

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    1. Kennedy, John O.S., 1981. "Applications of Dynamic Programming to Agriculture, Forestry and Fisheries: Review and Prognosis," Review of Marketing and Agricultural Economics, Australian Agricultural and Resource Economics Society, vol. 49(03), pages 1-33, December.
    2. Kennedy, John O. S., 1988. "Principles of dynamic optimization in resource management," Agricultural Economics, Blackwell, vol. 2(1), pages 57-72, June.
    3. Aluwihare, Parakrama B. & Crean, J. & Young, R.T., 2002. "Assessing Water Sharing Rules in Unregulated Rivers in NSW: Mooki River," 2002 Conference (46th), February 13-15, 2002, Canberra, Australia 173974, Australian Agricultural and Resource Economics Society.
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    Cited by:

    1. Lee, Lisa Yu-Ting & Ancev, Tihomir & Vervoort, Willem, 2006. "Weighing Up the Cost: Economic Impact of Water Scarcity and Environmental Targets," 2006 Conference (50th), February 8-10, 2006, Sydney, Australia 139878, Australian Agricultural and Resource Economics Society.

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