This turned out to be - especially in the light of our present low-interest-rate environment and advances in longevity - spectacularly wrong. But who knew?
What all this means, in short, is that those generous pension schemes are unsustainable.
Since then companies have been shedding defined benefit plans, in favour of "defined contribution" schemes like KiwiSaver, where workers save a certain amount from each pay.
Back in 1990 New Zealand-registered superannuation schemes had 511,940 members; by 2014 there were 357,636. Most schemes are closed or closing and transferring to KiwiSaver.
The responsibility for funding retirement is being left more and more to individuals. Or is it being left to the government?
Many retirees rely on public money, in the form of NZ Super, for most or all of their income in retirement. It's effectively egalitarian, and keeps many people from hardship. But it is also difficult to sustain in its current form because of the huge demographic changes that are already upon us. With those over 65 doubling in the next 25 years, the cost of NZ Super will double in 12 years and treble in 20.
Currently set at $20k per year for singles, most of us can't rely on NZ Super for the same lifestyle we have when we're working. So the savvy thing for us to do is build assets to top up.
The question remains: who should be responsible for people's retirements?
The Commission for Financial Capability, which is reviewing retirement policies this year, now has a survey out asking that very question. After the first week, "the government" and "me" are neck and neck (77 per cent and 74 per cent, respectively), but it's too early to call.
Have your say here.
Get Sorted is written by Sorted's resident blogger, Tom Hartmann. Check out the guides and calculators fromSorted -brought to you by the Commission for Financial Capability - at sorted.org.nz.