Kooiti MASUDA wrote:
> On Nov. 17, pm2:36, James Annan <[EMAIL PROTECTED]> wrote:
> 
>> Kooiti MASUDA wrote:
>>> I think it is reasonable that future uncertain profit should be
>>> discounted.  But I do not think it reasonable that future uncertain
>>> loss or cost should be discounted in the same way.
> 
>> Well, a loss can often be viewed as a smaller gain.
> 
> Yes, in such cases where the word "loss" is really appropriate.
> What I meant may be better represented by "damage" rather than "loss".
> I view a damage something different from a smaller gain.

I think the problem is perhaps not so much in loss v gain but rather in 
allocating monetary values to intangibles such as species loss and 
habitat change/loss. Such environmental changes are of course generally 
(or even by definition) losses, especially to those with the sort of 
mind-set that I challenged recently (ie who regard any environmental 
change axiomatically as a loss). It's not clear to me how to decide how 
much value we should attribute to the loss of the species of smallpox 
virus, for example, following its deliberate extinction in the wild. 
There has certainly been some debate on the ethics of this but it seems 
to be essentially contained within the academic sphere and treated as an 
interesting debating point, and does not seem to have had much serious 
consideration in terms of health and environmental policy. (I don't know 
much about smallpox and would welcome any correction if I'm mistaken on 
this.)

James

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