Suppose a Firm's CFO Thinks That an Externality Is Present

True/False

Suppose a firm's CFO thinks that an externality is present in a project, but that it cannot be quantified with any precision--estimates of its effect would really just be guesses. In this case, the externality should be ignored--i.e., not considered at all--because if it were considered it would make the analysis appear more precise than it really is.