If you have a word limit.... That's a really big question, by the way, and a difficult question, but I think the quick observation I would make is that if you have a small number of suppliers and a customer who makes only very occasional orders, those suppliers are desperate to win an order. When you come to a competition, they quite frequently make offers that are highly optimistic, let's say, and then it's not surprising that they come in late and over budget. It's not surprising that if the government wants to change a contract and maybe change a requirement, the companies that have the contract seem to charge excessively for it, because they know they're in difficulty with their contract in the first place, so I think you have to think about the effects of competition on the offers that companies make.
Now, if you're in a market where there are multiple suppliers and multiple customers, competition works much better, but if you're in a competition where losing that competition could mean you leave the sector, then you are not going to give.... You're going to be drawn to extremely optimistic answers. I think we can see this in the way that lots of competitions have run. If I use Dr. Ross's country, the competition between Airbus and Boeing for the U.S. tanker has left Boeing with losses in the billions because of the price they committed to. You have to think about using competition when the market structures are right.