Our research is still a work in progress, but I can speak specifically to two areas and then talk more broadly. The two specific things where we have more or less coalesced....
The way the Conference Board works is that we have quality researchers in-house, but we also turn to the leading experts across the country as readers. We have reached a view around revenues for cities, for example, which is seldom mentioned on Parliament Hill, but cities are the missing partner in the Constitution.
We think the time has come to give Canadian cities access to some form of growth tax, but that's going to have to change from province to province. You'll see our further thinking around that, as well as things like uploading various services back to the provincial or even federal level, all of which was done during the 1990s as we dealt with the fiscal problem at both the federal and provincial levels. That's one element.
Secondly, I agree with your point that we have to find a way to put a price on carbon. The challenge for the next 40 to 50 years is going to be building what economists call negative externalities, putting a price on the negative things that happen as we're creating wealth. We've forgotten to put a price on the bads.
There are only two choices for doing that. You can do that either by setting limits, capping and then allowing firms to trade the permits among themselves to set the price for carbon that way, or through a carbon tax or green tax or a combination. In fact, part of the research challenge, as I read the literature, is finding the best way to do that.
I hope early in the new year we will have some thoughts on how you can link cap-and-trade, particularly for the major emitters, and green taxes across the board. Then of course, there'll be the political challenge of convincing the Canadian public that's going to be a good thing in the long term.
I talked earlier about sales tax harmonization. I think we'll have some thoughts around that and ultimately linking the economic research on productivity to the fundamental tax base, which is the balance between income taxes and consumption taxes, and throwing in corporate income tax as well.