Jim, the obvious answer to your "What is that something?" is income.

Gene

On Feb 10, 2009, at 11:13 AM, Jim Devine wrote:

Sandwichman wrote:
It goes without saying that the Sandwichman agrees. The Jevons paradox
is the kicker here. Yes, we can produce cleaner energy... and the
cleaner we can make it the more we'll use.

me:
what if the cleaner energy is more expensive, as under a carbon tax?
do we typically use more of something when its price goes up (all else
constant)?

Sandwichman now writes:
Well, maybe I should have just said "all else constant" and beat you to it.

All else constant, if the price of carbon-based energy rises, the
quantity demanded will go down (except in rare situations which I
doubt apply here). Are you saying that something _isn't_ constant that
would cause more carbon-based energy to be used _even though_ the
price of it would be rising? What is that "something"?
--
Jim Devine / "Disbelief in magic can force a poor soul into believing
in government and business."  -- Tom Robbins
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