The only thing to add is that the multiplier effect, even for a small amount of contributions at the higher rate, is significant. Seven years of contributions can get a lifetime net amount of pension of almost $29,000 at our rate because of how competitive the Canada Pension Plan is versus the mutual fund industry or other retirement savings vehicles. Even a small amount of time within that 40-year span is very significant--far more than small business or Canadians can get anywhere else.
On March 16th, 2010. See this statement in context.