Thank you.
Professor Duff, regarding this notion of putting on a carbon tax, anybody who lives in 2008 knows you have to price carbon somehow or other, and whether it's a tax or whether it's cap and trade, or whatever it is, there are all kinds of ideas out there.
I'm curious as to how you would see the application of the tax on a destination basis. That's not clear to me. Could you use an example of a product originating in China or India? Then if it comes to a Canadian consumer or industry, how would that tax apply and how would that affect our competitiveness?