I haven't seen that study either, but in the long term you would expect to see a link between productivity growth and wages, in the sense that wages, their share of all income, should be relatively constant over time. That's been somewhat less true in recent years.
I would also emphasize that Canada's not had the same income inequality problems that we've seen in other developed countries in recent years; Canada's done quite well in that regard. Maybe workers aren't getting quite as much as they should, but we are still doing well compared to our peers.