In my opinion, this is almost inevitable in a federation where several levels of government have to share certain responsibilities. Some responsibilities clearly belong to one government rather than the other, but there are also shared responsibilities. I am thinking, for example, of justice and certain other areas where responsibilities have been transferred over time. I think it's normal for there to be some duplication.
I haven't seen the $7.5‑billion figure, so I can't comment on it. However, I know from experience that there is duplication in the collection of taxes. There is duplication between Quebec and the federal government. It can easily reach hundreds of millions of dollars.
We could estimate the administrative cost of these duplications if the committee passed a motion to that effect and determined certain parameters. We could look at that.