Potentially applicable techniques

This chapter presents additional techniques and approaches which have been used to place values on the environmental impacts of development projects. We call these “potentially applicable” either because they need greater care in their use, make more demands on data or on other resources, or because they require stronger assumptions than the more directly operational techniques presented in Chapter 4. This does not mean that these techniques cannot be used; many of them can add to project appraisal by explicitly incorporating the monetary costs of environmental impacts.