Thank you very much for that question. I didn't expect it, but I am really pleased that you asked it.
I think we made a mistake, and I say that with great respect for the Competition Bureau. There are some very fine people there, but we've engaged in what I call nose counting—how many companies are in or the concentration ratio. I use concentration ratios in my courses too.
To go back to Schumpeter, who understood this more deeply, I believe, than anyone else, he argued that it wasn't the concentration ratio that's critical; it's the contestability of markets. How easy is it to enter the market with substitutes? That's where competition increasingly comes from.
Jeff Bezos taught us that. He deconstructed the retail physical bricks and mortar because he had a brilliant idea in 1995. He understood that you can sell stuff online when everybody was laughing at him. It's contestability that's critical, not looking at the existing status quo. It's like looking in the rear-view mirror.
My overarching philosophical criticism is that we should be asking how we can make all of these enclosed markets more contestable, whether they have to do with airlines, banking or other areas that are protected.