I'm not sure which market segment you're referring to. I guess in the largest sense it's a pretty normal process, in that businesses may launch but they may not have either the financial wherewithal or the economic stamina, if you will, to make it in the longer run.
I think, for example, of someone who's engaging simply in arbitrage. It may be that when prices come down, they no longer have a sufficient margin within which to operate, and the business becomes more difficult. We don't have responsibility for reviewing market concentration in the sense of, for example, the Competition Bureau, which looks at mergers and acquisitions. We don't review mergers and acquisitions unless they had a fundamental impact or they related to Canadian ownership.