Perfect. Here's my other question.
I'd like to talk about economic studies. I'm not an economist by training; pardon me for that. You've studied the sources of revenue from oil sands operations. It seems to me that, when you conduct an economic study, that you also have to determine costs. However, in your study, we only see revenues. You disregard costs. I'm wondering about that.
What are the infrastructure costs for Alberta as a province, and for the cities concerned? What are the oil sands operating costs using current methods? How much does it cost for health care, for Aboriginal people, among others? In fact, I find it curious that we're being presented with a study focusing on only one component, revenues, and that costs are disregarded.
Could you tell me why your study focuses on a single component, revenues?