Valuation of the gains from protection of biodiversity is difficult because the services that provide the benefits do not normally pass through markets where prices can form. But the services sometimes pass through markets where consumers or producers behave in a market-oriented manner, and so...

When a weed invasion is discovered a decision has to be made as to whether to attempt to eradicate it, contain it or do nothing. Ideally, these decisions should be based on a complete benefit-cost analysis, but this is often not possible. A partial analysis, combining knowledge of the rate of...

Generalised travel-cost models were specified for the repeatable measurement of the economic value of recreation in Parks. Valuations of recreational use have been undertaken for approximately 30 metropolitan parks in Melbourne and 35 National Parks and other sites in rural Victoria. Zonal...