by Patrick Appel
Manzi responds to the Dish's readers:
1. Everybody agrees that if Waxman-Markey becomes law, and it does not lead to a global, binding and enforced agreement to severely reduce global greenhouse gas emissions, then it makes U.S. taxpayers worse off economically.
2. I have presented an economic argument that even if such a global agreement were achieved it would accomplish in the best case a net increase in NPV of global consumption of 0.2%, and a practical argument that it would almost certainly reduce global economic welfare. These specific arguments remain undisputed.
3. Those who argue that Waxman-Markey would lead to a global agreement have provided no evidence that it would have this negotiating effect, and are presenting what is, at best, a pretty idiosyncratic negotiating premise that by giving away our leverage as one participant in a collective action problem we will somehow increase our ability to get others to sacrifice on our behalf.