Going back a couple of years, I remember a study, I believe from Statistics Canada, that found that for every dollar of infrastructure spending, businesses benefited by 17¢ per year, which I would argue is quite a good rate of return for infrastructure spending.
I would just caution to distinguish between renewing the existing infrastructure and rebuilding infrastructure. If we are looking at infrastructure—for example, expansion of highways that reinforce sprawling suburban patterns of development—we are locking ourselves in for a generation. The type of infrastructure investments matter a great deal. In particular, public transportation is one, affordable housing is another, and child care and early learning facilities is another. Even in the oil and gas sector—and this is a longer-term proposition—developing infrastructure around carbon sequestration is something that could be incredibly important for the future.