I'll take another crack at it.
Let's clear up the “regions” aspect first. I believe that the author of the bill recognizes that the Prairies are a vast place and there are multiple regions. I think we can clarify that by saying “Prairies regions” or “the Prairies”, even. “Prairie regions” might be the right term.
Coming back to the notion of metrics, I think it would clarify matters if we swapped the phrase “economic prosperity” for “skills transfer”. I think the intention of the drafter here was about jobs, so we could say “fostering job creation and skills transfer, as evidenced by increased employment”.
I think anything like that would work well.