One of the things to look at is the anticipated investment return level. The Office of the Chief Actuary anticipates that we will make returns of 3.9% over inflation on the base CPP over that 75-year time frame.
I think you'll find that assumptions in other countries.... For example, the U.S. pension funds have much higher return expectations in order to get to their sustainability estimates. The question, in a low interest rate environment, is whether those numbers are achievable. We've comfortably exceeded 3.9% over inflation over the last 10 and 20 years. One way of looking at it and comparing is to ask whether those estimates in other countries are reasonable.