In terms of today's foreign direct investment release, obviously it's good news, and all of us should take what we can get at this point. We are definitely thankful for any greenery we can see poking up through the snow, especially in cold Ottawa.
More broadly speaking, in terms of the economy itself, I always like to think of the economy in this way. You have people who work. If you count the number of people between the ages of 18 and 64 within the working-age population, that's been pretty much flat over the past year. We expect it's going to be flat in 2026, at least based upon our estimates from this morning. Then, for the people who are working, there is the level of effort they're engaging in, presuming they have jobs. Then you have the final component, which you highlighted, which is productivity.
Productivity growth in Canada has been uneven since the pandemic, so it's been pretty volatile. It wasn't particularly strong. We saw a reduction of growth in productivity over the previous decade or so, which I believe led the deputy governor of the Bank of Canada to highlight that as a significant challenge for Canadians and for the Canadian economy.
In terms of our economic modelling, I would say that in the short term, looking at our most recent economic and fiscal outlook, we do continue to have some unevenness in growth in the Canadian economy. There's a lot going on in terms of changes. On the demographic side, we had substantial increases in the size of the population. It's now flat and returning to something more normal.
There's a lot of uncertainty with respect to trade agreements. The trade data has been particularly volatile at this point. We do have what I would characterize as a very defensible assumption that, over the medium term, looking at year three and year four, we would start to return to productivity growth and economic growth that looks like something more akin to what we saw prior to the pandemic. Again, the underlying assumption is that growth in the economy and productivity growth are driven by the people in the Canadian economy who work, who start businesses and who operate those businesses.
We still have the same people in the economy. They've demonstrated their resilience in responding to shocks in the past, with various types of supports at the federal level and at the provincial level. At this point, there's no reason to assume that the same will not continue once we get through the sticky period we're currently in.