That's a very good question. First of all by “tax the right things” I meant what do we really value in creating long-term wealth? We value investment and income. So we value individual effort. We don't value consumption. Economic theory is very clear on this: consumption taxes are not a long-term wealth creator—albeit they're popular politics. Frankly, taxing carbon is another way to raise revenue and put a price on things that are not good for our economy in the long term.
In terms of your second question, we've had the chance to do a lot of the analysis for the federal government and the provinces on the infrastructure programs that were put in place to stimulate the economy in 2009-10, and they're not all equal. Although infrastructure spending is good for the economy because it has very high local content, not every form of infrastructure spending is equally good. But compared to other forms of spending, it's a very good form of spending to kick-start an economy right away.