Techniques to Value Environmental Resources:
an Introductory Handbook
Published as a joint exercise by the
Commonwealth Department of the Environment, Sport and Territories,
the Commonwealth Department of Finance,
and the Resource Assessment Commission
Australian Government Publishing Service, 1995
Chapter 7 - THE POTENTIAL
When faced with a decision on the use of an environmental resource, the decision maker needs to place a value on the gains or losses associated with each option. In this way, the alternative uses can be assessed on a comparable basis. The purpose of this final chapter is to review the status of the techniques and suggest some further steps in valuation.
The valuation methods described in Chapters 3, 4 and 5 demonstrated that:
- there are many techniques which can be used
- many of the techniques have been applied in Australia over a number of years
- many different types of environmental effects have been given a monetary value.
Some techniques have been regularly used for many years. For example, the change-in-productivity and property-value methods have long been used to value the unpriced effects of agricultural use of the land. The property-value method is used routinely to work out the cost of noise in the assessment of highway projects in New South Wales.
This substantial record, together with the constant need for economic information and the theoretical and market validity of the techniques, suggests that there is great potential for further applications. The examples have demonstrated that these techniques advance the sustainable use of resources and conservation of the environment.
THE NEXT STEPS
Debates about the techniques and the usefulness of their estimates of monetary value will continue. In Europe and the United States of America, handbooks are being prepared to encourage valuation and to promote the systematic use of monetary values in the development and appraisal of policies.
Research should continue to refine the techniques and better identify their uses. Even with the present state of knowledge, there are further roles for the values and techniques.
- Replacement costs and relocation costs could be included as part of all analyses to capture the full costs of alternatives. Reliable values for environmental effects could be integrated into environmental impact statements.
- The preventative-expenditure technique could be used to assess the effects of noise, domestic water quality, congestion and pollution.
- The property-value technique has potential for widespread application to the urban and rural environment.
- Contingent ranking could complement contingent valuation.
- The key trade-offs in a decision could be regularly presented in results of analyses.
- The opportunity cost of policies to avoid irreversibility could be routinely assessed and highlighted. The monetary values of environmental effects could be integrated into options for environmental standards and broad national priorities and into assessments of the balance between conservation and development.
- Future losses in productivity could be added into today's balance sheets to better assess the economic worth of today's decisions.
- The full market costs of the use, maintenance and replacement of environmental resources could become part of the financial accounts of firms. This would better reflect the costs of sustainable development.
FURTHER READING ON THE TECHNIQUES
General
Hufschmidt et al. (1983) and Sinden and Worrell (1979) introduce most of the techniques and offer comprehensive overviews of the use of them.
Izmir, Gül (1993) Valuation of Environmental Impacts, Technical Report, Environment Protection Authority of New South Wales, Sydney.
Winpenny, J.T. (1991) Values for the Environment-A Guide to Economic Appraisal, Overseas Development Institute, London.
Change-in-productivity technique
Streeting, Mark and Hamilton, Clive (1991) An Economic Analysis of the Forests of South Eastern Australia, Research Paper No. 5, Resource Assessment Commission, Australian Government Printing Service, Canberra.
Replacement-cost technique
Thampapillai, Dodo J. (1988) 'The Value of Natural Environments in the Extraction of Finite Energy Resources: a Method of Valuation', International Journal of Energy Research, vol.12, pp.527-538.
Preventative-expenditure technique
Greig, P.J. and Devonshire, P.G. (1981) 'Tree Removals and Saline Seepage in Victorian Catchments: Some Hydrologic and Economic Results', Australian Journal of Agricultural Economics, vol.25, no.2, pp.124-148.
Relocation-cost technique
Sinden, J.A. (1990) Valuation of Unpriced Benefits and Costs of River Management, Office of Water Resources, Victorian Department of Conservation and Environment, Melbourne.
Travel-cost technique
Resource Assessment Commission (1992b) Forestry and Timber Inquiry Final Report Vol.2B, Australian Government Publishing Service, Canberra.
Property-value technique
Streeting, Mark (1990) A Survey of the Hedonic Pricing Technique, Resource Assessment Commission, Research Paper No.1, Australian Government Publishing Service, Canberra.
King, D.A. and Sinden, J.A. (1988) 'Influence of Soil Conservation on Farm Land Values', Land Economics, vol.64, no.3, pp.242-255.
Wage-differential technique
Thaler, R. and Rosen, R. (1976) 'The Value of Saving a Life: Evidence from the Labour Market', in Nelson Terleckyj (ed), Household Production and Consumption, 40, National Bureau of Economic Research, Washington, D.C.
Contingent valuation
Lockwood, Michael and DeLacy, Terry (eds) (1992) Valuing Natural Areas: Applications and Problems of the Contingent Valuation Method, The Johnstone Centre of Parks, Recreation, and Heritage, Charles Sturt University Printery, Bathurst.
Wilks, Leanne C. (1990) A Survey of the Contingent Valuation Method, Resource Assessment Commission, Research Paper No. 2, Australian Government Publishing Service, Canberra.
Trade-off game
Bennett, J.W. (1991) 'Alternative Resource Management Options for Fraser Island and the Great Sandy Region: Aspects of an Economic Evaluation', in Appendix 1 of Commission of Inquiry into the Conservation, Management and Use of Fraser Island and the Great Sandy Region, pp. 53-58.
Priority evaluator
O'Hanlon, Paul W. and Sinden, J.A. (1978), 'Scope for valuation of environmental goods. comment', Land Economics, vol.4, no.3, pp. 381-387.
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