Restia’s Reviews > Cost-Benefit Analysis: Concepts and Practice > Status Update

"If no person is willing to pay for some impact or to avoid it, then that impact would have zero value in a CBA. For example, if construction of a dam would lead to the extermination of a species of small fish, but no person with standing is willing to pay a positive amount to save that species, then the extermination of this fish would have zero cost in a CBA of the dam." Hmmmmm...