As I said in my presentation, I have tabled a brief to that effect. The OAS is paying money on the basis of residence tests rather than need. The goal of OAS and GIS should be mainly to address poverty needs.
Whatever changes we make to those programs, I don't see how they could achieve what you are suggesting, the incentive for people to stay at work. Those incentives come naturally because people are in need and they work longer.
The other factor that is taking more and more room is the fact that people live longer and are in better health. They are induced to work more because some people, a lot of them, enjoy working. They enjoy it and make more money.