A few years back I negotiated a raise and control of two departments using this argument. Unfortunately, I didn't keep my notes. If memory serves me, I found this info in an article that was available on Proquest.com (I was an MBA student, so I had free access). I'm almost sure it was based on a percentage of an organization's annual capital and maintenance spending. Something to the effect that an organization could expect x% savings in their capital and maintenance budgets if it had a dedicated plant engineer's position. Somewhere in my office I have the files from the PC I was using at the time. I can't promise you anything, but I will look.
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