That's a great question. That is one of the most fundamental points of a P3, and that's why it doesn't work in all circumstances. The question is, who is best able to manage that risk?
If the government were to take that risk, would it cost the government more than if the private sector were to take the risk? If the government did a procurement in its traditional way, what would the probability of a cost overrun be?
We'd look at the empirical evidence. We do workshops with experts about the probability and the likelihood—we do it on a whole-risk register, a whole set of risks. So there's quite a systematic evaluation of the risks, probability, and results. We do things called Monte Carlo simulations to figure out the evaluation of those kinds of risks, what those risks are worth, and what they will likely cost the government. Then the question is whether the private sector is better able to manage those risks. They will charge you for them, but will they charge you less than if you did them on our circumstances?
That's why, if it's low-risk, standard, for example, you're building or replacing sidewalks—but if you're building the Sea-to-Sky Highway from Vancouver to Whistler, up that coast…. If any of you have driven on it, think of the engineering and the issues of that Sea-to-Sky Highway. There are significant engineering complexities in that kind of project, or a major hospital, but they can manage those kinds of risks better. They will charge you, and that's the evaluation. If they can't, you don't do a P3, and if they can, you do. That's really a technocratic evaluation.
On average, our prior investments, our estimates...well, you have to see what it is in reality—they are about 8% better value for the projects we invest in. Because we invest only 25% in the projects, on a $1.5 billion project, on an average of 8%—I'll do my math—that's $120 million or $130 million of better value for the taxpayer, plus we're getting the infrastructure.