On Tue, 24 Jul 2007, Axel Gosseries apparently wrote: > I was wondering what the main reason would be why > Sidgwick did not see that improvements to climate > could actually be sold (through a tradable quotas > scheme). Any suggestions? author = {Coase, Ronald H.}, year = 1960, title = {The Problem of Social Cost}, journal = jle, volume = 3, month = oct, pages = {1--44} hth, Alan Isaac