I think one area we can comment on is what happened in the U.S. That's an economy that we often use as the closest example. Star Alliance was in the debit market and dominated that market. Along came Visa, and they ended up, between 2002 and 2006, not dominating that market but overtaking Star Alliance. There were allegations at that time that part of the reason they did that was that they were leveraging.
But we're not experts on those facts. We shall certainly try to get them for you, if we can.