But you've ignored decades of economists explaining how to do social programs in an efficient way. For example, Milton Friedman's Negative Income Tax would take the place minimum wages and food stamps with none of the administrative overhead or perverse incentives (i.e. the "welfare trap," where earning an extra dollar per day results in losing more than a dollar per day in benefits, thus discouraging career advancement).
And wrt sulpur dioxide, economists since Pigou have been arguing not for cap-and-trade, but for pollution taxes to right externalities. And if you go beyond Pigou, you don't find cap-and-trade, but Coase, who argues that if you structure the system properly, you don't even need intervention to right externalities, the actors will find an efficient arrangement on their own. Even beside this, Libertarians have no principled opposition to righting negative externalities: it's one of the few proper roles of government.
In the end, cap-and-trade is preferred not because it's the most effective, but because it's the most politically expedient. Pollution/Source fuels taxes are cheaper to administer, have better incentives for bureacrats to be faithful, and achieve the same ends. They're better and economists will tell you so. The only reason cap-and-trade is the solution-du-jour is because it doesn't include the word "tax" in it. This is why conservatives are identifying it (correctly) as "Tax-and-trade."
You're not arguing against libertarians, you're arguing against the decades of economists you (I'm sorry to say) don't seem to know.
And wrt sulpur dioxide, economists since Pigou have been arguing not for cap-and-trade, but for pollution taxes to right externalities. And if you go beyond Pigou, you don't find cap-and-trade, but Coase, who argues that if you structure the system properly, you don't even need intervention to right externalities, the actors will find an efficient arrangement on their own. Even beside this, Libertarians have no principled opposition to righting negative externalities: it's one of the few proper roles of government.
In the end, cap-and-trade is preferred not because it's the most effective, but because it's the most politically expedient. Pollution/Source fuels taxes are cheaper to administer, have better incentives for bureacrats to be faithful, and achieve the same ends. They're better and economists will tell you so. The only reason cap-and-trade is the solution-du-jour is because it doesn't include the word "tax" in it. This is why conservatives are identifying it (correctly) as "Tax-and-trade."
You're not arguing against libertarians, you're arguing against the decades of economists you (I'm sorry to say) don't seem to know.