This is a question of proof and evidence. We need proof; we need evidence in order to act. We consistently communicate with the public to say, please tell us anything you can and we will be happy to investigate. There's nothing we like more than having the necessary information so we can investigate successfully. It's not that we choose to focus on local markets; it's just that that's often where the evidence is made available to us.
Because we try to track this market and because the sorts of frustrations you're sharing we hear frequently, we've independently decided to carry out research projects. We don't have any evidence that there is anti-competitive behaviour, but we do these comprehensive research projects trying to see if there are some grounds for us to take action, because there could be a national conspiracy. We've done six of these studies since 1990. We come at them with a fresh set of eyes every time we do them, and we've not yet found evidence of a national conspiracy that some people are concerned might exist.
So we will continue to act where we have evidence. We have the examples we've given of the last 13 prosecutions that we've carried out, and we're in the process of conducting an inquiry as well right now.