I think it's not possible to simply look at the tax ratios and talk only about, for example, the level of income or the instance of poverty, because there are so many other things that affect that. But what you can do is compare the progress different countries are making and try to relate that to the taxes that there are. When we study this, what we find is that countries that raise a lot of their money from corporate taxes do not do as well in terms of growth as do countries that raise more of their taxes from consumption taxes.
If you're looking to change the tax system in a way that would increase the rate of growth in Canada, the logic of that experience is that you should reduce corporate tax rates and replace the revenue with consumption taxes.